90957288 has 64 divisors (see below), whose sum is σ = 232848000. Its totient is φ = 29601792.

The previous prime is 90957287. The next prime is 90957289. The reversal of 90957288 is 88275909.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90957287) and next prime (90957289).

It is not an unprimeable number, because it can be changed into a prime (90957281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206973 + ... + 207411.

It is an arithmetic number, because the mean of its divisors is an integer number (3638250).

Almost surely, 2^90957288 is an apocalyptic number.

It is an amenable number.

90957288 is an abundant number, since it is smaller than the sum of its proper divisors (141890712).

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

90957288 is a wasteful number, since it uses less digits than its factorization.

90957288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 90957288 is about 9537.1530343179. The cubic root of 90957288 is about 449.7237613260.

The spelling of 90957288 in words is "ninety million, nine hundred fifty-seven thousand, two hundred eighty-eight".