431234339 has 2 divisors, whose sum is σ = 431234340. Its totient is φ = 431234338.

The previous prime is 431234249. The next prime is 431234369. The reversal of 431234339 is 933432134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431234339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431234369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215617169 + 215617170.

It is an arithmetic number, because the mean of its divisors is an integer number (215617170).

Almost surely, 2^431234339 is an apocalyptic number.

431234339 is a deficient number, since it is larger than the sum of its proper divisors (1).

431234339 is an equidigital number, since it uses as much as digits as its factorization.

431234339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 32.

The square root of 431234339 is about 20766.1825813027. The cubic root of 431234339 is about 755.5057582288.

The spelling of 431234339 in words is "four hundred thirty-one million, two hundred thirty-four thousand, three hundred thirty-nine".