426339967 has 2 divisors, whose sum is σ = 426339968. Its totient is φ = 426339966.

The previous prime is 426339899. The next prime is 426339971. The reversal of 426339967 is 769933624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426339967 - 2⁷ = 426339839 is a prime.

It is a super-2 number, since 2×426339967² = 363531534923122178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426339967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426333967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213169983 + 213169984.

It is an arithmetic number, because the mean of its divisors is an integer number (213169984).

Almost surely, 2^426339967 is an apocalyptic number.

426339967 is a deficient number, since it is larger than the sum of its proper divisors (1).

426339967 is an equidigital number, since it uses as much as digits as its factorization.

426339967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 49.

The square root of 426339967 is about 20648.0015255714. The cubic root of 426339967 is about 752.6366264432.

The spelling of 426339967 in words is "four hundred twenty-six million, three hundred thirty-nine thousand, nine hundred sixty-seven".