86744872 has 32 divisors (see below), whose sum is σ = 167908320. Its totient is φ = 41981760.

The previous prime is 86744821. The next prime is 86744873. The reversal of 86744872 is 27844768.

It is not an unprimeable number, because it can be changed into a prime (86744873) 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, 66547 + ... + 67837.

It is an arithmetic number, because the mean of its divisors is an integer number (5247135).

Almost surely, 2^86744872 is an apocalyptic number.

It is an amenable number.

86744872 is a deficient number, since it is larger than the sum of its proper divisors (81163448).

86744872 is a wasteful number, since it uses less digits than its factorization.

86744872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1557 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 86744872 is about 9313.6927155667. The cubic root of 86744872 is about 442.6712023333.

It can be divided in two parts, 86744 and 872, that added together give a square (87616 = 296²).

The spelling of 86744872 in words is "eighty-six million, seven hundred forty-four thousand, eight hundred seventy-two".