90804675 has 24 divisors (see below), whose sum is σ = 161680624. Its totient is φ = 44703360.

The previous prime is 90804671. The next prime is 90804689. The reversal of 90804675 is 57640809.

It is not a de Polignac number, because 90804675 - 2² = 90804671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90804671) 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 23 ways as a sum of consecutive naturals, for example, 45592 + ... + 47541.

Almost surely, 2^90804675 is an apocalyptic number.

90804675 is a deficient number, since it is larger than the sum of its proper divisors (70875949).

90804675 is a wasteful number, since it uses less digits than its factorization.

90804675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93159 (or 93154 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 90804675 is about 9529.1487027961. The cubic root of 90804675 is about 449.4720969992.

The spelling of 90804675 in words is "ninety million, eight hundred four thousand, six hundred seventy-five".