346878313 has 4 divisors (see below), whose sum is σ = 358067968. Its totient is φ = 335688660.

The previous prime is 346878299. The next prime is 346878317. The reversal of 346878313 is 313878643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 346878313 - 2⁵ = 346878281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 346878313.

It is not an unprimeable number, because it can be changed into a prime (346878317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5594781 + ... + 5594842.

It is an arithmetic number, because the mean of its divisors is an integer number (89516992).

Almost surely, 2^346878313 is an apocalyptic number.

It is an amenable number.

346878313 is a deficient number, since it is larger than the sum of its proper divisors (11189655).

346878313 is a wasteful number, since it uses less digits than its factorization.

346878313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189654.

The product of its digits is 290304, while the sum is 43.

The square root of 346878313 is about 18624.6694735772. The cubic root of 346878313 is about 702.6284263460.

The spelling of 346878313 in words is "three hundred forty-six million, eight hundred seventy-eight thousand, three hundred thirteen".