86985747 has 12 divisors (see below), whose sum is σ = 131109264. Its totient is φ = 55469040.

The previous prime is 86985739. The next prime is 86985763. The reversal of 86985747 is 74758968.

86985747 is a `hidden beast` number, since 8 + 69 + 8 + 574 + 7 = 666.

It is not a de Polignac number, because 86985747 - 2³ = 86985739 is a prime.

It is a super-2 number, since 2×86985747² = 15133040362296018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86985693 and 86985702.

It is not an unprimeable number, because it can be changed into a prime (86985707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209904 + ... + 210317.

It is an arithmetic number, because the mean of its divisors is an integer number (10925772).

Almost surely, 2^86985747 is an apocalyptic number.

86985747 is a deficient number, since it is larger than the sum of its proper divisors (44123517).

86985747 is a wasteful number, since it uses less digits than its factorization.

86985747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420250 (or 420247 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 86985747 is about 9326.6149807956. The cubic root of 86985747 is about 443.0805632533.

The spelling of 86985747 in words is "eighty-six million, nine hundred eighty-five thousand, seven hundred forty-seven".