346391879 has 4 divisors (see below), whose sum is σ = 346558080. Its totient is φ = 346225680.

The previous prime is 346391873. The next prime is 346391893. The reversal of 346391879 is 978193643.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 346391879 - 2²⁰ = 345343303 is a prime.

It is a super-3 number, since 3×346391879³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346391873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79934 + ... + 84155.

It is an arithmetic number, because the mean of its divisors is an integer number (86639520).

Almost surely, 2^346391879 is an apocalyptic number.

346391879 is a deficient number, since it is larger than the sum of its proper divisors (166201).

346391879 is a wasteful number, since it uses less digits than its factorization.

346391879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166200.

The product of its digits is 979776, while the sum is 50.

The square root of 346391879 is about 18611.6060295720. The cubic root of 346391879 is about 702.2998363378.

The spelling of 346391879 in words is "three hundred forty-six million, three hundred ninety-one thousand, eight hundred seventy-nine".