426548779 has 2 divisors, whose sum is σ = 426548780. Its totient is φ = 426548778.

The previous prime is 426548767. The next prime is 426548827. The reversal of 426548779 is 977845624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426548779 - 2¹⁹ = 426024491 is a prime.

It is not a weakly prime, because it can be changed into another prime (426548279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213274389 + 213274390.

It is an arithmetic number, because the mean of its divisors is an integer number (213274390).

Almost surely, 2^426548779 is an apocalyptic number.

426548779 is a deficient number, since it is larger than the sum of its proper divisors (1).

426548779 is an equidigital number, since it uses as much as digits as its factorization.

426548779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The square root of 426548779 is about 20653.0573765726. The cubic root of 426548779 is about 752.7594813795.

The spelling of 426548779 in words is "four hundred twenty-six million, five hundred forty-eight thousand, seven hundred seventy-nine".