349361879 has 4 divisors (see below), whose sum is σ = 349666560. Its totient is φ = 349057200.

The previous prime is 349361839. The next prime is 349361891. The reversal of 349361879 is 978163943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978163943 = 1013 ⋅965611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349361879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349361809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150614 + ... + 152915.

It is an arithmetic number, because the mean of its divisors is an integer number (87416640).

Almost surely, 2^349361879 is an apocalyptic number.

349361879 is a deficient number, since it is larger than the sum of its proper divisors (304681).

349361879 is a wasteful number, since it uses less digits than its factorization.

349361879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304680.

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

The square root of 349361879 is about 18691.2246522265. The cubic root of 349361879 is about 704.3013241508.

The spelling of 349361879 in words is "three hundred forty-nine million, three hundred sixty-one thousand, eight hundred seventy-nine".