86261867 has 2 divisors, whose sum is σ = 86261868. Its totient is φ = 86261866.

The previous prime is 86261849. The next prime is 86261969. The reversal of 86261867 is 76816268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86261867 - 2⁶ = 86261803 is a prime.

It is a super-2 number, since 2×86261867² = 14882219396651378, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86261807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43130933 + 43130934.

It is an arithmetic number, because the mean of its divisors is an integer number (43130934).

Almost surely, 2^86261867 is an apocalyptic number.

86261867 is a deficient number, since it is larger than the sum of its proper divisors (1).

86261867 is an equidigital number, since it uses as much as digits as its factorization.

86261867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 86261867 is about 9287.7266863318. The cubic root of 86261867 is about 441.8480586516.

The spelling of 86261867 in words is "eighty-six million, two hundred sixty-one thousand, eight hundred sixty-seven".