86431512 has 16 divisors (see below), whose sum is σ = 216078840. Its totient is φ = 28810496.

The previous prime is 86431487. The next prime is 86431537. The reversal of 86431512 is 21513468.

It is an interprime number because it is at equal distance from previous prime (86431487) and next prime (86431537).

It is a super-2 number, since 2×86431512² = 14940812533212288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86431512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800633 + ... + 1800680.

Almost surely, 2^86431512 is an apocalyptic number.

It is an amenable number.

86431512 is an abundant number, since it is smaller than the sum of its proper divisors (129647328).

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

86431512 is a wasteful number, since it uses less digits than its factorization.

86431512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3601322 (or 3601318 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 86431512 is about 9296.8549520792. The cubic root of 86431512 is about 442.1375192303.

The spelling of 86431512 in words is "eighty-six million, four hundred thirty-one thousand, five hundred twelve".