86513574 has 32 divisors (see below), whose sum is σ = 208154880. Its totient is φ = 23416992.

The previous prime is 86513573. The next prime is 86513597. The reversal of 86513574 is 47531568.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86513573) 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, 53409 + ... + 55004.

It is an arithmetic number, because the mean of its divisors is an integer number (6504840).

Almost surely, 2^86513574 is an apocalyptic number.

86513574 is an abundant number, since it is smaller than the sum of its proper divisors (121641306).

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

86513574 is a wasteful number, since it uses less digits than its factorization.

86513574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108444.

The product of its digits is 100800, while the sum is 39.

The square root of 86513574 is about 9301.2673330036. The cubic root of 86513574 is about 442.2774034442.

The spelling of 86513574 in words is "eighty-six million, five hundred thirteen thousand, five hundred seventy-four".