104165993 has 2 divisors, whose sum is σ = 104165994. Its totient is φ = 104165992.

The previous prime is 104165981. The next prime is 104166001. The reversal of 104165993 is 399561401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97673689 + 6492304 = 9883^2 + 2548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104165993 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (104165903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52082996 + 52082997.

It is an arithmetic number, because the mean of its divisors is an integer number (52082997).

Almost surely, 2^104165993 is an apocalyptic number.

It is an amenable number.

104165993 is a deficient number, since it is larger than the sum of its proper divisors (1).

104165993 is an equidigital number, since it uses as much as digits as its factorization.

104165993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 104165993 is about 10206.1742587514. The cubic root of 104165993 is about 470.5170001270.

The spelling of 104165993 in words is "one hundred four million, one hundred sixty-five thousand, nine hundred ninety-three".