426274657 has 2 divisors, whose sum is σ = 426274658. Its totient is φ = 426274656.

The previous prime is 426274627. The next prime is 426274691. The reversal of 426274657 is 756472624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348905041 + 77369616 = 18679^2 + 8796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426274657 is a prime.

It is not a weakly prime, because it can be changed into another prime (426274627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213137328 + 213137329.

It is an arithmetic number, because the mean of its divisors is an integer number (213137329).

Almost surely, 2^426274657 is an apocalyptic number.

It is an amenable number.

426274657 is a deficient number, since it is larger than the sum of its proper divisors (1).

426274657 is an equidigital number, since it uses as much as digits as its factorization.

426274657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 43.

The square root of 426274657 is about 20646.4199560117. The cubic root of 426274657 is about 752.5981929457.

The spelling of 426274657 in words is "four hundred twenty-six million, two hundred seventy-four thousand, six hundred fifty-seven".