86647097 has 2 divisors, whose sum is σ = 86647098. Its totient is φ = 86647096.

The previous prime is 86647091. The next prime is 86647129. The reversal of 86647097 is 79074668.

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., 85914361 + 732736 = 9269^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 86647097 - 2¹⁸ = 86384953 is a prime.

It is not a weakly prime, because it can be changed into another prime (86647091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43323548 + 43323549.

It is an arithmetic number, because the mean of its divisors is an integer number (43323549).

Almost surely, 2^86647097 is an apocalyptic number.

It is an amenable number.

86647097 is a deficient number, since it is larger than the sum of its proper divisors (1).

86647097 is an equidigital number, since it uses as much as digits as its factorization.

86647097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 86647097 is about 9308.4422434691. The cubic root of 86647097 is about 442.5048199758.

The spelling of 86647097 in words is "eighty-six million, six hundred forty-seven thousand, ninety-seven".