404426717 has 2 divisors, whose sum is σ = 404426718. Its totient is φ = 404426716.

The previous prime is 404426699. The next prime is 404426741. The reversal of 404426717 is 717624404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285812836 + 118613881 = 16906^2 + 10891^2 .

It is a cyclic number.

It is not a de Polignac number, because 404426717 - 2²⁶ = 337317853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404426777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202213358 + 202213359.

It is an arithmetic number, because the mean of its divisors is an integer number (202213359).

Almost surely, 2^404426717 is an apocalyptic number.

It is an amenable number.

404426717 is a deficient number, since it is larger than the sum of its proper divisors (1).

404426717 is an equidigital number, since it uses as much as digits as its factorization.

404426717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 404426717 is about 20110.3634228723. The cubic root of 404426717 is about 739.5143617846.

The spelling of 404426717 in words is "four hundred four million, four hundred twenty-six thousand, seven hundred seventeen".