86977255 has 4 divisors (see below), whose sum is σ = 104372712. Its totient is φ = 69581800.

The previous prime is 86977249. The next prime is 86977271. The reversal of 86977255 is 55277968.

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

It is not a de Polignac number, because 86977255 - 2⁵ = 86977223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86977199 and 86977208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8697721 + ... + 8697730.

It is an arithmetic number, because the mean of its divisors is an integer number (26093178).

Almost surely, 2^86977255 is an apocalyptic number.

86977255 is a deficient number, since it is larger than the sum of its proper divisors (17395457).

86977255 is a wasteful number, since it uses less digits than its factorization.

86977255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17395456.

The product of its digits is 1058400, while the sum is 49.

The square root of 86977255 is about 9326.1597134083. The cubic root of 86977255 is about 443.0661441761.

The spelling of 86977255 in words is "eighty-six million, nine hundred seventy-seven thousand, two hundred fifty-five".