87204532 has 6 divisors (see below), whose sum is σ = 152607938. Its totient is φ = 43602264.

The previous prime is 87204529. The next prime is 87204553. The reversal of 87204532 is 23540278.

It can be written as a sum of positive squares in only one way, i.e., 47941776 + 39262756 = 6924^2 + 6266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87204494 and 87204503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10900563 + ... + 10900570.

Almost surely, 2^87204532 is an apocalyptic number.

It is an amenable number.

87204532 is a deficient number, since it is larger than the sum of its proper divisors (65403406).

87204532 is a wasteful number, since it uses less digits than its factorization.

87204532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21801137 (or 21801135 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 87204532 is about 9338.3366827289. The cubic root of 87204532 is about 443.4517283554.

It can be divided in two parts, 87204 and 532, that multiplied together give a triangular number (46392528 = T₉₆₃₂).

The spelling of 87204532 in words is "eighty-seven million, two hundred four thousand, five hundred thirty-two".