86610977 has 4 divisors (see below), whose sum is σ = 86651136. Its totient is φ = 86570820.

The previous prime is 86610961. The next prime is 86611003. The reversal of 86610977 is 77901668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86610977 - 2⁴ = 86610961 is a prime.

It is a super-2 number, since 2×86610977² = 15002922673789058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86610917) 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, 16649 + ... + 21222.

It is an arithmetic number, because the mean of its divisors is an integer number (21662784).

Almost surely, 2^86610977 is an apocalyptic number.

It is an amenable number.

86610977 is a deficient number, since it is larger than the sum of its proper divisors (40159).

86610977 is a wasteful number, since it uses less digits than its factorization.

86610977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40158.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 86610977 is about 9306.5018669745. The cubic root of 86610977 is about 442.4433234144.

The spelling of 86610977 in words is "eighty-six million, six hundred ten thousand, nine hundred seventy-seven".