345299865 has 16 divisors (see below), whose sum is σ = 553387200. Its totient is φ = 183857472.

The previous prime is 345299861. The next prime is 345299893. The reversal of 345299865 is 568992543.

It is not a de Polignac number, because 345299865 - 2² = 345299861 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345299861) 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, 9310 + ... + 27879.

It is an arithmetic number, because the mean of its divisors is an integer number (34586700).

Almost surely, 2^345299865 is an apocalyptic number.

It is an amenable number.

345299865 is a deficient number, since it is larger than the sum of its proper divisors (208087335).

345299865 is a wasteful number, since it uses less digits than its factorization.

345299865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37816.

The product of its digits is 2332800, while the sum is 51.

The square root of 345299865 is about 18582.2459622081. The cubic root of 345299865 is about 701.5610501720.

The spelling of 345299865 in words is "three hundred forty-five million, two hundred ninety-nine thousand, eight hundred sixty-five".