86406877 has 4 divisors (see below), whose sum is σ = 88742236. Its totient is φ = 84071520.

The previous prime is 86406871. The next prime is 86406899. The reversal of 86406877 is 77860468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38118276 + 48288601 = 6174^2 + 6949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86406877 is a prime.

It is a super-2 number, since 2×86406877² = 14932296785786258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86406871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167624 + ... + 1167697.

It is an arithmetic number, because the mean of its divisors is an integer number (22185559).

Almost surely, 2^86406877 is an apocalyptic number.

It is an amenable number.

86406877 is a deficient number, since it is larger than the sum of its proper divisors (2335359).

86406877 is a wasteful number, since it uses less digits than its factorization.

86406877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335358.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 86406877 is about 9295.5299472381. The cubic root of 86406877 is about 442.0955087315.

The spelling of 86406877 in words is "eighty-six million, four hundred six thousand, eight hundred seventy-seven".