86957671 has 2 divisors, whose sum is σ = 86957672. Its totient is φ = 86957670.

The previous prime is 86957639. The next prime is 86957677. The reversal of 86957671 is 17675968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86957671 - 2⁵ = 86957639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86957677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43478835 + 43478836.

It is an arithmetic number, because the mean of its divisors is an integer number (43478836).

Almost surely, 2^86957671 is an apocalyptic number.

86957671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86957671 is an equidigital number, since it uses as much as digits as its factorization.

86957671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The square root of 86957671 is about 9325.1097044485. The cubic root of 86957671 is about 443.0328877472.

The spelling of 86957671 in words is "eighty-six million, nine hundred fifty-seven thousand, six hundred seventy-one".