87289604 has 12 divisors (see below), whose sum is σ = 154849884. Its totient is φ = 43046784.

The previous prime is 87289567. The next prime is 87289619. The reversal of 87289604 is 40698278.

It can be written as a sum of positive squares in 2 ways, for example, as 36024004 + 51265600 = 6002^2 + 7160^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149177 + ... + 149760.

It is an arithmetic number, because the mean of its divisors is an integer number (12904157).

Almost surely, 2^87289604 is an apocalyptic number.

It is an amenable number.

87289604 is a deficient number, since it is larger than the sum of its proper divisors (67560280).

87289604 is a wasteful number, since it uses less digits than its factorization.

87289604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299014 (or 299012 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 87289604 is about 9342.8905591364. The cubic root of 87289604 is about 443.5958839538.

The spelling of 87289604 in words is "eighty-seven million, two hundred eighty-nine thousand, six hundred four".