86544738 has 24 divisors (see below), whose sum is σ = 214301568. Its totient is φ = 24727032.

The previous prime is 86544721. The next prime is 86544743. The reversal of 86544738 is 83744568.

It is a junction number, because it is equal to n+sod(n) for n = 86544693 and 86544702.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343306 + ... + 343557.

It is an arithmetic number, because the mean of its divisors is an integer number (8929232).

Almost surely, 2^86544738 is an apocalyptic number.

86544738 is an abundant number, since it is smaller than the sum of its proper divisors (127756830).

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

86544738 is a wasteful number, since it uses less digits than its factorization.

86544738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686878 (or 686875 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 86544738 is about 9302.9424377452. The cubic root of 86544738 is about 442.3305029279.

The spelling of 86544738 in words is "eighty-six million, five hundred forty-four thousand, seven hundred thirty-eight".