90514890 has 96 divisors (see below), whose sum is σ = 249350400. Its totient is φ = 22733568.

The previous prime is 90514889. The next prime is 90514933. The reversal of 90514890 is 9841509.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 150811 + ... + 151409.

It is an arithmetic number, because the mean of its divisors is an integer number (2597400).

Almost surely, 2^90514890 is an apocalyptic number.

90514890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 90514890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124675200).

90514890 is an abundant number, since it is smaller than the sum of its proper divisors (158835510).

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

90514890 is a wasteful number, since it uses less digits than its factorization.

90514890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 90514890 is about 9513.9313640577. The cubic root of 90514890 is about 448.9934539714.

The spelling of 90514890 in words is "ninety million, five hundred fourteen thousand, eight hundred ninety".