90897156 has 81 divisors (see below), whose sum is σ = 268463559. Its totient is φ = 25856208.

The previous prime is 90897151. The next prime is 90897161. The reversal of 90897156 is 65179809.

The square root of 90897156 is 9534.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (90897151) and next prime (90897161).

It is not an unprimeable number, because it can be changed into a prime (90897151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 400315 + ... + 400541.

Almost surely, 2^90897156 is an apocalyptic number.

90897156 is the 9534-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90897156

90897156 is an abundant number, since it is smaller than the sum of its proper divisors (177566403).

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

90897156 is a wasteful number, since it uses less digits than its factorization.

90897156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The cubic root of 90897156 is about 449.6246351268.

The spelling of 90897156 in words is "ninety million, eight hundred ninety-seven thousand, one hundred fifty-six".