86962979 has 4 divisors (see below), whose sum is σ = 87342960. Its totient is φ = 86583000.

The previous prime is 86962961. The next prime is 86962999. The reversal of 86962979 is 97926968.

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

It is a cyclic number.

It is not a de Polignac number, because 86962979 - 2⁸ = 86962723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86962999) 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, 189647 + ... + 190104.

It is an arithmetic number, because the mean of its divisors is an integer number (21835740).

Almost surely, 2^86962979 is an apocalyptic number.

86962979 is a deficient number, since it is larger than the sum of its proper divisors (379981).

86962979 is a wasteful number, since it uses less digits than its factorization.

86962979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379980.

The product of its digits is 2939328, while the sum is 56.

The square root of 86962979 is about 9325.3943080172. The cubic root of 86962979 is about 443.0419019825.

The spelling of 86962979 in words is "eighty-six million, nine hundred sixty-two thousand, nine hundred seventy-nine".