86184661 has 2 divisors, whose sum is σ = 86184662. Its totient is φ = 86184660.

The previous prime is 86184653. The next prime is 86184671. The reversal of 86184661 is 16648168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75168900 + 11015761 = 8670^2 + 3319^2 .

It is a cyclic number.

It is not a de Polignac number, because 86184661 - 2³ = 86184653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86184601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43092330 + 43092331.

It is an arithmetic number, because the mean of its divisors is an integer number (43092331).

Almost surely, 2^86184661 is an apocalyptic number.

It is an amenable number.

86184661 is a deficient number, since it is larger than the sum of its proper divisors (1).

86184661 is an equidigital number, since it uses as much as digits as its factorization.

86184661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 86184661 is about 9283.5694105231. The cubic root of 86184661 is about 441.7161985191.

The spelling of 86184661 in words is "eighty-six million, one hundred eighty-four thousand, six hundred sixty-one".