104164639 has 2 divisors, whose sum is σ = 104164640. Its totient is φ = 104164638.

The previous prime is 104164591. The next prime is 104164667. The reversal of 104164639 is 936461401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104164639 - 2¹⁵ = 104131871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104164439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52082319 + 52082320.

It is an arithmetic number, because the mean of its divisors is an integer number (52082320).

Almost surely, 2^104164639 is an apocalyptic number.

104164639 is a deficient number, since it is larger than the sum of its proper divisors (1).

104164639 is an equidigital number, since it uses as much as digits as its factorization.

104164639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 104164639 is about 10206.1079261391. The cubic root of 104164639 is about 470.5149614489.

The spelling of 104164639 in words is "one hundred four million, one hundred sixty-four thousand, six hundred thirty-nine".