90860688 has 60 divisors (see below), whose sum is σ = 257894208. Its totient is φ = 29856960.

The previous prime is 90860687. The next prime is 90860743. The reversal of 90860688 is 88606809.

It is not an unprimeable number, because it can be changed into a prime (90860687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5781 + ... + 14667.

Almost surely, 2^90860688 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 90860688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128947104).

90860688 is an abundant number, since it is smaller than the sum of its proper divisors (167033520).

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

90860688 is a wasteful number, since it uses less digits than its factorization.

90860688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972 (or 8963 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 90860688 is about 9532.0872845353. The cubic root of 90860688 is about 449.5644971818.

The spelling of 90860688 in words is "ninety million, eight hundred sixty thousand, six hundred eighty-eight".