349097931 has 48 divisors (see below), whose sum is σ = 643645184. Its totient is φ = 184127904.

The previous prime is 349097921. The next prime is 349097993. The reversal of 349097931 is 139790943.

It is not a de Polignac number, because 349097931 - 2¹¹ = 349095883 is a prime.

It is a super-2 number, since 2×349097931² = 243738730856961522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349097921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14220 + ... + 30006.

Almost surely, 2^349097931 is an apocalyptic number.

349097931 is a deficient number, since it is larger than the sum of its proper divisors (294547253).

349097931 is a wasteful number, since it uses less digits than its factorization.

349097931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822 (or 15810 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 349097931 is about 18684.1625715471. The cubic root of 349097931 is about 704.1239094860.

The spelling of 349097931 in words is "three hundred forty-nine million, ninety-seven thousand, nine hundred thirty-one".