345307923 has 12 divisors (see below), whose sum is σ = 500582368. Its totient is φ = 229372560.

The previous prime is 345307891. The next prime is 345307951. The reversal of 345307923 is 329703543.

345307923 is a `hidden beast` number, since 34 + 530 + 7 + 92 + 3 = 666.

It is not a de Polignac number, because 345307923 - 2⁵ = 345307891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345308923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66763 + ... + 71748.

Almost surely, 2^345307923 is an apocalyptic number.

345307923 is a deficient number, since it is larger than the sum of its proper divisors (155274445).

345307923 is a wasteful number, since it uses less digits than its factorization.

345307923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138794 (or 138791 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 345307923 is about 18582.4627808049. The cubic root of 345307923 is about 701.5665073949.

The spelling of 345307923 in words is "three hundred forty-five million, three hundred seven thousand, nine hundred twenty-three".