426577213 has 2 divisors, whose sum is σ = 426577214. Its totient is φ = 426577212.

The previous prime is 426577183. The next prime is 426577247. The reversal of 426577213 is 312775624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325333369 + 101243844 = 18037^2 + 10062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426577213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426577253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213288606 + 213288607.

It is an arithmetic number, because the mean of its divisors is an integer number (213288607).

Almost surely, 2^426577213 is an apocalyptic number.

It is an amenable number.

426577213 is a deficient number, since it is larger than the sum of its proper divisors (1).

426577213 is an equidigital number, since it uses as much as digits as its factorization.

426577213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 426577213 is about 20653.7457377590. The cubic root of 426577213 is about 752.7762074755.

The spelling of 426577213 in words is "four hundred twenty-six million, five hundred seventy-seven thousand, two hundred thirteen".