86312977 has 2 divisors, whose sum is σ = 86312978. Its totient is φ = 86312976.

The previous prime is 86312969. The next prime is 86313013. The reversal of 86312977 is 77921368.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61402896 + 24910081 = 7836^2 + 4991^2 .

It is a cyclic number.

It is not a de Polignac number, because 86312977 - 2³ = 86312969 is a prime.

It is not a weakly prime, because it can be changed into another prime (86312957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43156488 + 43156489.

It is an arithmetic number, because the mean of its divisors is an integer number (43156489).

Almost surely, 2^86312977 is an apocalyptic number.

It is an amenable number.

86312977 is a deficient number, since it is larger than the sum of its proper divisors (1).

86312977 is an equidigital number, since it uses as much as digits as its factorization.

86312977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 86312977 is about 9290.4777595127. The cubic root of 86312977 is about 441.9353061474.

The spelling of 86312977 in words is "eighty-six million, three hundred twelve thousand, nine hundred seventy-seven".