90704925 has 18 divisors (see below), whose sum is σ = 162463002. Its totient is φ = 48375840.

The previous prime is 90704897. The next prime is 90704927. The reversal of 90704925 is 52940709.

It can be written as a sum of positive squares in 3 ways, for example, as 5659641 + 85045284 = 2379^2 + 9222^2 .

It is not a de Polignac number, because 90704925 - 2¹⁵ = 90672157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90704925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90704927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 201342 + ... + 201791.

Almost surely, 2^90704925 is an apocalyptic number.

It is an amenable number.

90704925 is a deficient number, since it is larger than the sum of its proper divisors (71758077).

90704925 is a wasteful number, since it uses less digits than its factorization.

90704925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403149 (or 403141 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90704925 is about 9523.9133238391. The cubic root of 90704925 is about 449.3074532408.

The spelling of 90704925 in words is "ninety million, seven hundred four thousand, nine hundred twenty-five".