345872023 has 16 divisors (see below), whose sum is σ = 410989824. Its totient is φ = 284898240.

The previous prime is 345872017. The next prime is 345872057. The reversal of 345872023 is 320278543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345872023 is a prime.

It is a super-2 number, since 2×345872023² = 239254912588225058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345872023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345872003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10236 + ... + 28222.

It is an arithmetic number, because the mean of its divisors is an integer number (25686864).

Almost surely, 2^345872023 is an apocalyptic number.

345872023 is a deficient number, since it is larger than the sum of its proper divisors (65117801).

345872023 is a wasteful number, since it uses less digits than its factorization.

345872023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 345872023 is about 18597.6348765105. The cubic root of 345872023 is about 701.9483292732.

The spelling of 345872023 in words is "three hundred forty-five million, eight hundred seventy-two thousand, twenty-three".