426983239 has 2 divisors, whose sum is σ = 426983240. Its totient is φ = 426983238.

The previous prime is 426983159. The next prime is 426983267. The reversal of 426983239 is 932389624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426983239 is a prime.

It is a super-2 number, since 2×426983239² = 364629372773862242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426983539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213491619 + 213491620.

It is an arithmetic number, because the mean of its divisors is an integer number (213491620).

Almost surely, 2^426983239 is an apocalyptic number.

426983239 is a deficient number, since it is larger than the sum of its proper divisors (1).

426983239 is an equidigital number, since it uses as much as digits as its factorization.

426983239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The square root of 426983239 is about 20663.5727549715. The cubic root of 426983239 is about 753.0149683067.

The spelling of 426983239 in words is "four hundred twenty-six million, nine hundred eighty-three thousand, two hundred thirty-nine".