86712687 has 10 divisors (see below), whose sum is σ = 129533888. Its totient is φ = 57808404.

The previous prime is 86712667. The next prime is 86712707. The reversal of 86712687 is 78621768.

It is an interprime number because it is at equal distance from previous prime (86712667) and next prime (86712707).

It is not a de Polignac number, because 86712687 - 2⁶ = 86712623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86712607) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 535183 + ... + 535344.

Almost surely, 2^86712687 is an apocalyptic number.

86712687 is a deficient number, since it is larger than the sum of its proper divisors (42821201).

86712687 is a wasteful number, since it uses less digits than its factorization.

86712687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070539 (or 1070530 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 86712687 is about 9311.9647228713. The cubic root of 86712687 is about 442.6164473768.

The spelling of 86712687 in words is "eighty-six million, seven hundred twelve thousand, six hundred eighty-seven".