90696880 has 40 divisors (see below), whose sum is σ = 221972400. Its totient is φ = 34368768.

The previous prime is 90696871. The next prime is 90696883. The reversal of 90696880 is 8869609.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 90696880.

It is not an unprimeable number, because it can be changed into a prime (90696883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28315 + ... + 31354.

It is an arithmetic number, because the mean of its divisors is an integer number (5549310).

Almost surely, 2^90696880 is an apocalyptic number.

It is an amenable number.

90696880 is an abundant number, since it is smaller than the sum of its proper divisors (131275520).

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

90696880 is a wasteful number, since it uses less digits than its factorization.

90696880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59701 (or 59695 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 90696880 is about 9523.4909565768. The cubic root of 90696880 is about 449.2941691943.

The spelling of 90696880 in words is "ninety million, six hundred ninety-six thousand, eight hundred eighty".