87431204 has 48 divisors (see below), whose sum is σ = 187463808. Its totient is φ = 34825728.

The previous prime is 87431203. The next prime is 87431207. The reversal of 87431204 is 40213478.

It is not an unprimeable number, because it can be changed into a prime (87431203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38402 + ... + 40614.

It is an arithmetic number, because the mean of its divisors is an integer number (3905496).

Almost surely, 2^87431204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87431204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93731904).

87431204 is an abundant number, since it is smaller than the sum of its proper divisors (100032604).

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

87431204 is a wasteful number, since it uses less digits than its factorization.

87431204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 87431204 is about 9350.4654429606. The cubic root of 87431204 is about 443.8356194243.

The spelling of 87431204 in words is "eighty-seven million, four hundred thirty-one thousand, two hundred four".