349912673 has 4 divisors (see below), whose sum is σ = 381722928. Its totient is φ = 318102420.

The previous prime is 349912669. The next prime is 349912691. The reversal of 349912673 is 376219943.

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 349912673 - 2² = 349912669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349912373) 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, 15905111 + ... + 15905132.

It is an arithmetic number, because the mean of its divisors is an integer number (95430732).

Almost surely, 2^349912673 is an apocalyptic number.

It is an amenable number.

349912673 is a deficient number, since it is larger than the sum of its proper divisors (31810255).

349912673 is a wasteful number, since it uses less digits than its factorization.

349912673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31810254.

The product of its digits is 244944, while the sum is 44.

The square root of 349912673 is about 18705.9528760232. The cubic root of 349912673 is about 704.6712569544.

The spelling of 349912673 in words is "three hundred forty-nine million, nine hundred twelve thousand, six hundred seventy-three".