345172893 has 8 divisors (see below), whose sum is σ = 495632928. Its totient is φ = 212414064.

The previous prime is 345172873. The next prime is 345172897. The reversal of 345172893 is 398271543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345172893 - 2¹⁸ = 344910749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345172897) 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, 4425255 + ... + 4425332.

It is an arithmetic number, because the mean of its divisors is an integer number (61954116).

Almost surely, 2^345172893 is an apocalyptic number.

It is an amenable number.

345172893 is a deficient number, since it is larger than the sum of its proper divisors (150460035).

345172893 is a wasteful number, since it uses less digits than its factorization.

345172893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8850603.

The product of its digits is 181440, while the sum is 42.

The square root of 345172893 is about 18578.8291611716. The cubic root of 345172893 is about 701.4750480818.

The spelling of 345172893 in words is "three hundred forty-five million, one hundred seventy-two thousand, eight hundred ninety-three".