404725117 has 2 divisors, whose sum is σ = 404725118. Its totient is φ = 404725116.

The previous prime is 404725081. The next prime is 404725127. The reversal of 404725117 is 711527404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385179876 + 19545241 = 19626^2 + 4421^2 .

It is a cyclic number.

It is not a de Polignac number, because 404725117 - 2¹⁵ = 404692349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404725127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202362558 + 202362559.

It is an arithmetic number, because the mean of its divisors is an integer number (202362559).

Almost surely, 2^404725117 is an apocalyptic number.

It is an amenable number.

404725117 is a deficient number, since it is larger than the sum of its proper divisors (1).

404725117 is an equidigital number, since it uses as much as digits as its factorization.

404725117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 404725117 is about 20117.7811152224. The cubic root of 404725117 is about 739.6961968165.

The spelling of 404725117 in words is "four hundred four million, seven hundred twenty-five thousand, one hundred seventeen".