345591873 has 16 divisors (see below), whose sum is σ = 558532800. Its totient is φ = 209449440.

The previous prime is 345591847. The next prime is 345591881. The reversal of 345591873 is 378195543.

It is not a de Polignac number, because 345591873 - 2¹⁰ = 345590849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345591073) 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, 581508 + ... + 582101.

It is an arithmetic number, because the mean of its divisors is an integer number (34908300).

Almost surely, 2^345591873 is an apocalyptic number.

345591873 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

345591873 is a deficient number, since it is larger than the sum of its proper divisors (212940927).

345591873 is a wasteful number, since it uses less digits than its factorization.

345591873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163629 (or 1163623 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 345591873 is about 18590.1014790130. The cubic root of 345591873 is about 701.7587563196.

The spelling of 345591873 in words is "three hundred forty-five million, five hundred ninety-one thousand, eight hundred seventy-three".