86806361 has 2 divisors, whose sum is σ = 86806362. Its totient is φ = 86806360.

The previous prime is 86806331. The next prime is 86806373. The reversal of 86806361 is 16360868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85470025 + 1336336 = 9245^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 86806361 - 2¹⁰ = 86805337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86806331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43403180 + 43403181.

It is an arithmetic number, because the mean of its divisors is an integer number (43403181).

Almost surely, 2^86806361 is an apocalyptic number.

It is an amenable number.

86806361 is a deficient number, since it is larger than the sum of its proper divisors (1).

86806361 is an equidigital number, since it uses as much as digits as its factorization.

86806361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 86806361 is about 9316.9931308336. The cubic root of 86806361 is about 442.7757732818.

The spelling of 86806361 in words is "eighty-six million, eight hundred six thousand, three hundred sixty-one".