426445567 has 2 divisors, whose sum is σ = 426445568. Its totient is φ = 426445566.

The previous prime is 426445511. The next prime is 426445573. The reversal of 426445567 is 765544624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426445567 - 2²³ = 418056959 is a prime.

It is a super-2 number, since 2×426445567² = 363711643227902978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426445597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213222783 + 213222784.

It is an arithmetic number, because the mean of its divisors is an integer number (213222784).

Almost surely, 2^426445567 is an apocalyptic number.

426445567 is a deficient number, since it is larger than the sum of its proper divisors (1).

426445567 is an equidigital number, since it uses as much as digits as its factorization.

426445567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 43.

The square root of 426445567 is about 20650.5585154494. The cubic root of 426445567 is about 752.6987614160.

The spelling of 426445567 in words is "four hundred twenty-six million, four hundred forty-five thousand, five hundred sixty-seven".