86528564 has 24 divisors (see below), whose sum is σ = 156887808. Its totient is φ = 41713920.

The previous prime is 86528531. The next prime is 86528567. The reversal of 86528564 is 46582568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86528567) 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, 36932 + ... + 39204.

It is an arithmetic number, because the mean of its divisors is an integer number (6536992).

Almost surely, 2^86528564 is an apocalyptic number.

It is an amenable number.

86528564 is a deficient number, since it is larger than the sum of its proper divisors (70359244).

86528564 is a wasteful number, since it uses less digits than its factorization.

86528564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2613 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 86528564 is about 9302.0731022713. The cubic root of 86528564 is about 442.3029460849.

The spelling of 86528564 in words is "eighty-six million, five hundred twenty-eight thousand, five hundred sixty-four".