426248279 has 2 divisors, whose sum is σ = 426248280. Its totient is φ = 426248278.

The previous prime is 426248219. The next prime is 426248321. The reversal of 426248279 is 972842624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 426248279 - 2¹² = 426244183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426248219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213124139 + 213124140.

It is an arithmetic number, because the mean of its divisors is an integer number (213124140).

Almost surely, 2^426248279 is an apocalyptic number.

426248279 is a deficient number, since it is larger than the sum of its proper divisors (1).

426248279 is an equidigital number, since it uses as much as digits as its factorization.

426248279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The square root of 426248279 is about 20645.7811428873. The cubic root of 426248279 is about 752.5826689603.

The spelling of 426248279 in words is "four hundred twenty-six million, two hundred forty-eight thousand, two hundred seventy-nine".