426564071 has 2 divisors, whose sum is σ = 426564072. Its totient is φ = 426564070.

The previous prime is 426564031. The next prime is 426564077. The reversal of 426564071 is 170465624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426564071 is a prime.

It is equal to p_22675256 and since 426564071 and 22675256 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426564077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213282035 + 213282036.

It is an arithmetic number, because the mean of its divisors is an integer number (213282036).

Almost surely, 2^426564071 is an apocalyptic number.

426564071 is a deficient number, since it is larger than the sum of its proper divisors (1).

426564071 is an equidigital number, since it uses as much as digits as its factorization.

426564071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 426564071 is about 20653.4275847860. The cubic root of 426564071 is about 752.7684768809.

The spelling of 426564071 in words is "four hundred twenty-six million, five hundred sixty-four thousand, seventy-one".