90629538 has 8 divisors (see below), whose sum is σ = 181259088. Its totient is φ = 30209844.

The previous prime is 90629521. The next prime is 90629543. The reversal of 90629538 is 83592609.

It is a sphenic number, since it is the product of 3 distinct primes.

90629538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 90629538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7552456 + ... + 7552467.

It is an arithmetic number, because the mean of its divisors is an integer number (22657386).

Almost surely, 2^90629538 is an apocalyptic number.

90629538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90629538 is a wasteful number, since it uses less digits than its factorization.

90629538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15104928.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 90629538 is about 9519.9547267831. The cubic root of 90629538 is about 449.1829420700.

The spelling of 90629538 in words is "ninety million, six hundred twenty-nine thousand, five hundred thirty-eight".