86615071 has 2 divisors, whose sum is σ = 86615072. Its totient is φ = 86615070.

The previous prime is 86615063. The next prime is 86615093. The reversal of 86615071 is 17051668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86615071 - 2³ = 86615063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86615021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43307535 + 43307536.

It is an arithmetic number, because the mean of its divisors is an integer number (43307536).

Almost surely, 2^86615071 is an apocalyptic number.

86615071 is a deficient number, since it is larger than the sum of its proper divisors (1).

86615071 is an equidigital number, since it uses as much as digits as its factorization.

86615071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 86615071 is about 9306.7218181269. The cubic root of 86615071 is about 442.4502945648.

The spelling of 86615071 in words is "eighty-six million, six hundred fifteen thousand, seventy-one".