346638865 has 32 divisors (see below), whose sum is σ = 451215360. Its totient is φ = 254975424.

The previous prime is 346638847. The next prime is 346638881. The reversal of 346638865 is 568836643.

It is not a de Polignac number, because 346638865 - 2⁷ = 346638737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318352 + ... + 319438.

It is an arithmetic number, because the mean of its divisors is an integer number (14100480).

Almost surely, 2^346638865 is an apocalyptic number.

It is an amenable number.

346638865 is a deficient number, since it is larger than the sum of its proper divisors (104576495).

346638865 is a wasteful number, since it uses less digits than its factorization.

346638865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its digits is 2488320, while the sum is 49.

The square root of 346638865 is about 18618.2401155426. The cubic root of 346638865 is about 702.4667157476.

The spelling of 346638865 in words is "three hundred forty-six million, six hundred thirty-eight thousand, eight hundred sixty-five".