93131604 has 18 divisors (see below), whose sum is σ = 235416090. Its totient is φ = 31043856.

The previous prime is 93131587. The next prime is 93131617. The reversal of 93131604 is 40613139.

It can be written as a sum of positive squares in only one way, i.e., 59259204 + 33872400 = 7698^2 + 5820^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×93131604² = 17346991327225632, which contains 22 as substring.

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, 1293459 + ... + 1293530.

Almost surely, 2^93131604 is an apocalyptic number.

It is an amenable number.

93131604 is an abundant number, since it is smaller than the sum of its proper divisors (142284486).

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

93131604 is a wasteful number, since it uses less digits than its factorization.

93131604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586999 (or 2586994 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 93131604 is about 9650.4716983161. The cubic root of 93131604 is about 453.2790993848.

The spelling of 93131604 in words is "ninety-three million, one hundred thirty-one thousand, six hundred four".