86230861 has 2 divisors, whose sum is σ = 86230862. Its totient is φ = 86230860.

The previous prime is 86230829. The next prime is 86230877. The reversal of 86230861 is 16803268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68641225 + 17589636 = 8285^2 + 4194^2 .

It is a cyclic number.

It is not a de Polignac number, because 86230861 - 2⁵ = 86230829 is a prime.

It is a super-2 number, since 2×86230861² = 14871522777602642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86230811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43115430 + 43115431.

It is an arithmetic number, because the mean of its divisors is an integer number (43115431).

Almost surely, 2^86230861 is an apocalyptic number.

It is an amenable number.

86230861 is a deficient number, since it is larger than the sum of its proper divisors (1).

86230861 is an equidigital number, since it uses as much as digits as its factorization.

86230861 is an evil number, because the sum of its binary digits is even.

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

The square root of 86230861 is about 9286.0573442123. The cubic root of 86230861 is about 441.7951129598.

The spelling of 86230861 in words is "eighty-six million, two hundred thirty thousand, eight hundred sixty-one".