86575961 has 2 divisors, whose sum is σ = 86575962. Its totient is φ = 86575960.

The previous prime is 86575939. The next prime is 86575981. The reversal of 86575961 is 16957568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75151561 + 11424400 = 8669^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 86575961 - 2¹⁰ = 86574937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86575981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43287980 + 43287981.

It is an arithmetic number, because the mean of its divisors is an integer number (43287981).

Almost surely, 2^86575961 is an apocalyptic number.

It is an amenable number.

86575961 is a deficient number, since it is larger than the sum of its proper divisors (1).

86575961 is an equidigital number, since it uses as much as digits as its factorization.

86575961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 47.

The square root of 86575961 is about 9304.6204113870. The cubic root of 86575961 is about 442.3836901583.

The spelling of 86575961 in words is "eighty-six million, five hundred seventy-five thousand, nine hundred sixty-one".