86575939 has 2 divisors, whose sum is σ = 86575940. Its totient is φ = 86575938.

The previous prime is 86575919. The next prime is 86575961. The reversal of 86575939 is 93957568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86575939 - 2¹¹ = 86573891 is a prime.

It is not a weakly prime, because it can be changed into another prime (86575919) 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, 43287969 + 43287970.

It is an arithmetic number, because the mean of its divisors is an integer number (43287970).

Almost surely, 2^86575939 is an apocalyptic number.

86575939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86575939 is an equidigital number, since it uses as much as digits as its factorization.

86575939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 52.

The square root of 86575939 is about 9304.6192291786. The cubic root of 86575939 is about 442.3836526866.

The spelling of 86575939 in words is "eighty-six million, five hundred seventy-five thousand, nine hundred thirty-nine".