86744331 has 8 divisors (see below), whose sum is σ = 128510160. Its totient is φ = 57829536.

The previous prime is 86744327. The next prime is 86744341. The reversal of 86744331 is 13344768.

It is not a de Polignac number, because 86744331 - 2² = 86744327 is a prime.

It is a super-2 number, since 2×86744331² = 15049157921275122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86744341) 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, 1606350 + ... + 1606403.

It is an arithmetic number, because the mean of its divisors is an integer number (16063770).

Almost surely, 2^86744331 is an apocalyptic number.

86744331 is a deficient number, since it is larger than the sum of its proper divisors (41765829).

86744331 is a wasteful number, since it uses less digits than its factorization.

86744331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212762 (or 3212756 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 86744331 is about 9313.6636722613. The cubic root of 86744331 is about 442.6702820652.

The spelling of 86744331 in words is "eighty-six million, seven hundred forty-four thousand, three hundred thirty-one".