90634635 has 48 divisors (see below), whose sum is σ = 193362624. Its totient is φ = 38244096.

The previous prime is 90634627. The next prime is 90634639. The reversal of 90634635 is 53643609.

It is not a de Polignac number, because 90634635 - 2³ = 90634627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90634635.

It is not an unprimeable number, because it can be changed into a prime (90634639) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6972 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (4028388).

Almost surely, 2^90634635 is an apocalyptic number.

90634635 is an abundant number, since it is smaller than the sum of its proper divisors (102727989).

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

90634635 is a wasteful number, since it uses less digits than its factorization.

90634635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22164 (or 22161 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 90634635 is about 9520.2224238722. Note that the first 3 decimals coincide. The cubic root of 90634635 is about 449.1913625864.

The spelling of 90634635 in words is "ninety million, six hundred thirty-four thousand, six hundred thirty-five".