345868839 has 8 divisors (see below), whose sum is σ = 512398320. Its totient is φ = 230579208.

The previous prime is 345868811. The next prime is 345868843. The reversal of 345868839 is 938868543.

It is a happy number.

It is not a de Polignac number, because 345868839 - 2⁸ = 345868583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345868739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6404952 + ... + 6405005.

It is an arithmetic number, because the mean of its divisors is an integer number (64049790).

Almost surely, 2^345868839 is an apocalyptic number.

345868839 is a deficient number, since it is larger than the sum of its proper divisors (166529481).

345868839 is a wasteful number, since it uses less digits than its factorization.

345868839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809966 (or 12809960 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 345868839 is about 18597.5492740307. The cubic root of 345868839 is about 701.9461752873.

The spelling of 345868839 in words is "three hundred forty-five million, eight hundred sixty-eight thousand, eight hundred thirty-nine".