90275712 has 64 divisors (see below), whose sum is σ = 253918800. Its totient is φ = 28319744.

The previous prime is 90275711. The next prime is 90275747. The reversal of 90275712 is 21757209.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90275711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387 + ... + 13442.

Almost surely, 2^90275712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90275712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126959400).

90275712 is an abundant number, since it is smaller than the sum of its proper divisors (163643088).

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

90275712 is a wasteful number, since it uses less digits than its factorization.

90275712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13863 (or 13851 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 90275712 is about 9501.3531667863. The cubic root of 90275712 is about 448.5976292824.

The spelling of 90275712 in words is "ninety million, two hundred seventy-five thousand, seven hundred twelve".