426821467 has 2 divisors, whose sum is σ = 426821468. Its totient is φ = 426821466.

The previous prime is 426821459. The next prime is 426821489. The reversal of 426821467 is 764128624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426821467 - 2³ = 426821459 is a prime.

It is equal to p_22688167 and since 426821467 and 22688167 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (426821407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213410733 + 213410734.

It is an arithmetic number, because the mean of its divisors is an integer number (213410734).

Almost surely, 2^426821467 is an apocalyptic number.

426821467 is a deficient number, since it is larger than the sum of its proper divisors (1).

426821467 is an equidigital number, since it uses as much as digits as its factorization.

426821467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 426821467 is about 20659.6579594145. The cubic root of 426821467 is about 752.9198575281.

The spelling of 426821467 in words is "four hundred twenty-six million, eight hundred twenty-one thousand, four hundred sixty-seven".