87431082 has 16 divisors (see below), whose sum is σ = 175014432. Its totient is φ = 29118320.

The previous prime is 87431077. The next prime is 87431087. The reversal of 87431082 is 28013478.

It is an interprime number because it is at equal distance from previous prime (87431077) and next prime (87431087).

It is not an unprimeable number, because it can be changed into a prime (87431087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957 + ... + 13367.

It is an arithmetic number, because the mean of its divisors is an integer number (10938402).

Almost surely, 2^87431082 is an apocalyptic number.

87431082 is an abundant number, since it is smaller than the sum of its proper divisors (87583350).

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

87431082 is a wasteful number, since it uses less digits than its factorization.

87431082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12693.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 87431082 is about 9350.4589192189. The cubic root of 87431082 is about 443.8354129840.

The spelling of 87431082 in words is "eighty-seven million, four hundred thirty-one thousand, eighty-two".