90764898 has 32 divisors (see below), whose sum is σ = 212526720. Its totient is φ = 25299840.

The previous prime is 90764897. The next prime is 90764903. The reversal of 90764898 is 89846709.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90764898.

It is not an unprimeable number, because it can be changed into a prime (90764897) 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, 24633 + ... + 28076.

It is an arithmetic number, because the mean of its divisors is an integer number (6641460).

Almost surely, 2^90764898 is an apocalyptic number.

90764898 is an abundant number, since it is smaller than the sum of its proper divisors (121761822).

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

90764898 is a wasteful number, since it uses less digits than its factorization.

90764898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52762.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 90764898 is about 9527.0613517496. The cubic root of 90764898 is about 449.4064569763.

The spelling of 90764898 in words is "ninety million, seven hundred sixty-four thousand, eight hundred ninety-eight".