104564893 has 2 divisors, whose sum is σ = 104564894. Its totient is φ = 104564892.

The previous prime is 104564869. The next prime is 104564921. The reversal of 104564893 is 398465401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86899684 + 17665209 = 9322^2 + 4203^2 .

It is an emirp because it is prime and its reverse (398465401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104564893 - 2⁹ = 104564381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104564293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52282446 + 52282447.

It is an arithmetic number, because the mean of its divisors is an integer number (52282447).

Almost surely, 2^104564893 is an apocalyptic number.

It is an amenable number.

104564893 is a deficient number, since it is larger than the sum of its proper divisors (1).

104564893 is an equidigital number, since it uses as much as digits as its factorization.

104564893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 104564893 is about 10225.6976779093. The cubic root of 104564893 is about 471.1168445076.

The spelling of 104564893 in words is "one hundred four million, five hundred sixty-four thousand, eight hundred ninety-three".