90704725 has 6 divisors (see below), whose sum is σ = 112473890. Its totient is φ = 72563760.

The previous prime is 90704699. The next prime is 90704737. The reversal of 90704725 is 52740709.

It can be written as a sum of positive squares in 3 ways, for example, as 12859396 + 77845329 = 3586^2 + 8823^2 .

It is not a de Polignac number, because 90704725 - 2¹³ = 90696533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1814070 + ... + 1814119.

Almost surely, 2^90704725 is an apocalyptic number.

It is an amenable number.

90704725 is a deficient number, since it is larger than the sum of its proper divisors (21769165).

90704725 is a wasteful number, since it uses less digits than its factorization.

90704725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628199 (or 3628194 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 90704725 is about 9523.9028239478. The cubic root of 90704725 is about 449.3071230068.

The spelling of 90704725 in words is "ninety million, seven hundred four thousand, seven hundred twenty-five".