426315569 has 2 divisors, whose sum is σ = 426315570. Its totient is φ = 426315568.

The previous prime is 426315563. The next prime is 426315587. The reversal of 426315569 is 965513624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399400225 + 26915344 = 19985^2 + 5188^2 .

It is a cyclic number.

It is not a de Polignac number, because 426315569 - 2²⁸ = 157880113 is a prime.

It is a super-2 number, since 2×426315569² = 363489928743587522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (426315563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213157784 + 213157785.

It is an arithmetic number, because the mean of its divisors is an integer number (213157785).

Almost surely, 2^426315569 is an apocalyptic number.

It is an amenable number.

426315569 is a deficient number, since it is larger than the sum of its proper divisors (1).

426315569 is an equidigital number, since it uses as much as digits as its factorization.

426315569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The square root of 426315569 is about 20647.4107093359. The cubic root of 426315569 is about 752.6222692165.

The spelling of 426315569 in words is "four hundred twenty-six million, three hundred fifteen thousand, five hundred sixty-nine".