86677581 has 16 divisors (see below), whose sum is σ = 120987648. Its totient is φ = 55129200.

The previous prime is 86677573. The next prime is 86677583. The reversal of 86677581 is 18577668.

It is not a de Polignac number, because 86677581 - 2³ = 86677573 is a prime.

It is a super-2 number, since 2×86677581² = 15026006096023122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86677581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86677583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (7561728).

Almost surely, 2^86677581 is an apocalyptic number.

It is an amenable number.

86677581 is a deficient number, since it is larger than the sum of its proper divisors (34310067).

86677581 is a wasteful number, since it uses less digits than its factorization.

86677581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232.

The product of its digits is 564480, while the sum is 48.

The square root of 86677581 is about 9310.0795377913. The cubic root of 86677581 is about 442.5567075973.

The spelling of 86677581 in words is "eighty-six million, six hundred seventy-seven thousand, five hundred eighty-one".