349716831 has 8 divisors (see below), whose sum is σ = 490830720. Its totient is φ = 220873752.

The previous prime is 349716823. The next prime is 349716833. The reversal of 349716831 is 138617943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 349716831 - 2³ = 349716823 is a prime.

It is a super-2 number, since 2×349716831² = 244603723769365122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349716833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3067635 + ... + 3067748.

It is an arithmetic number, because the mean of its divisors is an integer number (61353840).

Almost surely, 2^349716831 is an apocalyptic number.

349716831 is a deficient number, since it is larger than the sum of its proper divisors (141113889).

349716831 is a wasteful number, since it uses less digits than its factorization.

349716831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135405.

The product of its digits is 108864, while the sum is 42.

The square root of 349716831 is about 18700.7173926564. The cubic root of 349716831 is about 704.5397670205.

The spelling of 349716831 in words is "three hundred forty-nine million, seven hundred sixteen thousand, eight hundred thirty-one".