426179881 has 2 divisors, whose sum is σ = 426179882. Its totient is φ = 426179880.

The previous prime is 426179867. The next prime is 426179893. The reversal of 426179881 is 188971624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396368281 + 29811600 = 19909^2 + 5460^2 .

It is a cyclic number.

It is not a de Polignac number, because 426179881 - 2⁵ = 426179849 is a prime.

It is a super-2 number, since 2×426179881² = 363258581938348322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426170881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213089940 + 213089941.

It is an arithmetic number, because the mean of its divisors is an integer number (213089941).

Almost surely, 2^426179881 is an apocalyptic number.

It is an amenable number.

426179881 is a deficient number, since it is larger than the sum of its proper divisors (1).

426179881 is an equidigital number, since it uses as much as digits as its factorization.

426179881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The square root of 426179881 is about 20644.1246121021. The cubic root of 426179881 is about 752.5424123731.

The spelling of 426179881 in words is "four hundred twenty-six million, one hundred seventy-nine thousand, eight hundred eighty-one".