86257536 has 32 divisors (see below), whose sum is σ = 229122600. Its totient is φ = 28752384.

The previous prime is 86257499. The next prime is 86257537. The reversal of 86257536 is 63575268.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86257537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111931 + ... + 112698.

Almost surely, 2^86257536 is an apocalyptic number.

It is an amenable number.

86257536 is an abundant number, since it is smaller than the sum of its proper divisors (142865064).

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

86257536 is a wasteful number, since it uses less digits than its factorization.

86257536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224646 (or 224634 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 86257536 is about 9287.4935262427. The cubic root of 86257536 is about 441.8406638199.

It can be divided in two parts, 8625 and 7536, that added together give a palindrome (16161).

The spelling of 86257536 in words is "eighty-six million, two hundred fifty-seven thousand, five hundred thirty-six".