87204732 has 12 divisors (see below), whose sum is σ = 203477736. Its totient is φ = 29068240.

The previous prime is 87204727. The next prime is 87204739. The reversal of 87204732 is 23740278.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 87204693 and 87204702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87204739) 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, 3633519 + ... + 3633542.

It is an arithmetic number, because the mean of its divisors is an integer number (16956478).

Almost surely, 2^87204732 is an apocalyptic number.

It is an amenable number.

87204732 is an abundant number, since it is smaller than the sum of its proper divisors (116273004).

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

87204732 is a wasteful number, since it uses less digits than its factorization.

87204732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267068 (or 7267066 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 87204732 is about 9338.3473912679. The cubic root of 87204732 is about 443.4520673679.

The spelling of 87204732 in words is "eighty-seven million, two hundred four thousand, seven hundred thirty-two".