426962309 has 2 divisors, whose sum is σ = 426962310. Its totient is φ = 426962308.

The previous prime is 426962303. The next prime is 426962321. The reversal of 426962309 is 903269624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394221025 + 32741284 = 19855^2 + 5722^2 .

It is a cyclic number.

It is not a de Polignac number, because 426962309 - 2²⁴ = 410185093 is a prime.

It is a super-2 number, since 2×426962309² = 364593626613222962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426962303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213481154 + 213481155.

It is an arithmetic number, because the mean of its divisors is an integer number (213481155).

Almost surely, 2^426962309 is an apocalyptic number.

It is an amenable number.

426962309 is a deficient number, since it is larger than the sum of its proper divisors (1).

426962309 is an equidigital number, since it uses as much as digits as its factorization.

426962309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 426962309 is about 20663.0663019795. The cubic root of 426962309 is about 753.0026642634.

The spelling of 426962309 in words is "four hundred twenty-six million, nine hundred sixty-two thousand, three hundred nine".