90660960 has 288 divisors, whose sum is σ = 346731840. Its totient is φ = 21417984.

The previous prime is 90660959. The next prime is 90660961. The reversal of 90660960 is 6906609.

It is an interprime number because it is at equal distance from previous prime (90660959) and next prime (90660961).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90660961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 542797 + ... + 542963.

It is an arithmetic number, because the mean of its divisors is an integer number (1203930).

Almost surely, 2^90660960 is an apocalyptic number.

90660960 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90660960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173365920).

90660960 is an abundant number, since it is smaller than the sum of its proper divisors (256070880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90660960 is a wasteful number, since it uses less digits than its factorization.

90660960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 90660960 is about 9521.6049067371. The cubic root of 90660960 is about 449.2348478682.

The spelling of 90660960 in words is "ninety million, six hundred sixty thousand, nine hundred sixty".