86977207 has 2 divisors, whose sum is σ = 86977208. Its totient is φ = 86977206.

The previous prime is 86977199. The next prime is 86977211. The reversal of 86977207 is 70277968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86977207 - 2³ = 86977199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86977507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43488603 + 43488604.

It is an arithmetic number, because the mean of its divisors is an integer number (43488604).

Almost surely, 2^86977207 is an apocalyptic number.

86977207 is a deficient number, since it is larger than the sum of its proper divisors (1).

86977207 is an equidigital number, since it uses as much as digits as its factorization.

86977207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 86977207 is about 9326.1571400014. The cubic root of 86977207 is about 443.0660626714.

The spelling of 86977207 in words is "eighty-six million, nine hundred seventy-seven thousand, two hundred seven".