87604724 has 12 divisors (see below), whose sum is σ = 154156548. Its totient is φ = 43560000.

The previous prime is 87604721. The next prime is 87604753. The reversal of 87604724 is 42740678.

It can be written as a sum of positive squares in 2 ways, for example, as 18215824 + 69388900 = 4268^2 + 8330^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87604721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59777 + ... + 61224.

It is an arithmetic number, because the mean of its divisors is an integer number (12846379).

Almost surely, 2^87604724 is an apocalyptic number.

It is an amenable number.

87604724 is a deficient number, since it is larger than the sum of its proper divisors (66551824).

87604724 is a wasteful number, since it uses less digits than its factorization.

87604724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121186 (or 121184 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 87604724 is about 9359.7395262902. The cubic root of 87604724 is about 444.1290442754.

It can be divided in two parts, 87604 and 724, that multiplied together give a square (63425296 = 7964²).

The spelling of 87604724 in words is "eighty-seven million, six hundred four thousand, seven hundred twenty-four".