86747538 has 24 divisors (see below), whose sum is σ = 176864688. Its totient is φ = 28364752.

The previous prime is 86747509. The next prime is 86747539. The reversal of 86747538 is 83574768.

It is a super-2 number, since 2×86747538² = 15050270698122888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86747539) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14281 + ... + 19427.

It is an arithmetic number, because the mean of its divisors is an integer number (7369362).

Almost surely, 2^86747538 is an apocalyptic number.

86747538 is an abundant number, since it is smaller than the sum of its proper divisors (90117150).

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

86747538 is a wasteful number, since it uses less digits than its factorization.

86747538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258 (or 5205 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 86747538 is about 9313.8358370759. The cubic root of 86747538 is about 442.6757372770.

The spelling of 86747538 in words is "eighty-six million, seven hundred forty-seven thousand, five hundred thirty-eight".