86868477 has 8 divisors (see below), whose sum is σ = 128694080. Its totient is φ = 57912300.

The previous prime is 86868469. The next prime is 86868499. The reversal of 86868477 is 77486868.

It is not a de Polignac number, because 86868477 - 2³ = 86868469 is a prime.

It is a super-2 number, since 2×86868477² = 15092264592599058, 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 (86868407) 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, 1608649 + ... + 1608702.

It is an arithmetic number, because the mean of its divisors is an integer number (16086760).

Almost surely, 2^86868477 is an apocalyptic number.

It is an amenable number.

86868477 is a deficient number, since it is larger than the sum of its proper divisors (41825603).

86868477 is a wasteful number, since it uses less digits than its factorization.

86868477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217360 (or 3217354 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 86868477 is about 9320.3260136113. The cubic root of 86868477 is about 442.8813604070.

The spelling of 86868477 in words is "eighty-six million, eight hundred sixty-eight thousand, four hundred seventy-seven".