342709931 has 2 divisors, whose sum is σ = 342709932. Its totient is φ = 342709930.

The previous prime is 342709901. The next prime is 342709949. The reversal of 342709931 is 139907243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342709931 is a prime.

It is a super-2 number, since 2×342709931² = 234900193612049522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342709901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171354965 + 171354966.

It is an arithmetic number, because the mean of its divisors is an integer number (171354966).

Almost surely, 2^342709931 is an apocalyptic number.

342709931 is a deficient number, since it is larger than the sum of its proper divisors (1).

342709931 is an equidigital number, since it uses as much as digits as its factorization.

342709931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 342709931 is about 18512.4263941818. The cubic root of 342709931 is about 699.8026184985.

The spelling of 342709931 in words is "three hundred forty-two million, seven hundred nine thousand, nine hundred thirty-one".