87431926 has 16 divisors (see below), whose sum is σ = 138983040. Its totient is φ = 41177920.

The previous prime is 87431921. The next prime is 87431941. The reversal of 87431926 is 62913478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87431921) 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, 16006 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (8686440).

Almost surely, 2^87431926 is an apocalyptic number.

87431926 is a deficient number, since it is larger than the sum of its proper divisors (51551114).

87431926 is a wasteful number, since it uses less digits than its factorization.

87431926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36839.

The product of its digits is 72576, while the sum is 40.

The square root of 87431926 is about 9350.5040505847. The cubic root of 87431926 is about 443.8368411408.

The spelling of 87431926 in words is "eighty-seven million, four hundred thirty-one thousand, nine hundred twenty-six".