90645908 has 12 divisors (see below), whose sum is σ = 160998432. Its totient is φ = 44646360.

The previous prime is 90645901. The next prime is 90645949. The reversal of 90645908 is 80954609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90645901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168848 + ... + 169383.

It is an arithmetic number, because the mean of its divisors is an integer number (13416536).

Almost surely, 2^90645908 is an apocalyptic number.

It is an amenable number.

90645908 is a deficient number, since it is larger than the sum of its proper divisors (70352524).

90645908 is a wasteful number, since it uses less digits than its factorization.

90645908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338302 (or 338300 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 90645908 is about 9520.8144609587. The cubic root of 90645908 is about 449.2099850637.

The spelling of 90645908 in words is "ninety million, six hundred forty-five thousand, nine hundred eight".