86023681 has 2 divisors, whose sum is σ = 86023682. Its totient is φ = 86023680.

The previous prime is 86023673. The next prime is 86023687. The reversal of 86023681 is 18632068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80263681 + 5760000 = 8959^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 86023681 - 2³ = 86023673 is a prime.

It is a super-2 number, since 2×86023681² = 14800147385579522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86023687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43011840 + 43011841.

It is an arithmetic number, because the mean of its divisors is an integer number (43011841).

Almost surely, 2^86023681 is an apocalyptic number.

It is an amenable number.

86023681 is a deficient number, since it is larger than the sum of its proper divisors (1).

86023681 is an equidigital number, since it uses as much as digits as its factorization.

86023681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 86023681 is about 9274.8952015643. The cubic root of 86023681 is about 441.4410072747.

The spelling of 86023681 in words is "eighty-six million, twenty-three thousand, six hundred eighty-one".