349797923 has 8 divisors (see below), whose sum is σ = 376043520. Its totient is φ = 324335880.

The previous prime is 349797919. The next prime is 349797947. The reversal of 349797923 is 329797943.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 349797923 - 2² = 349797919 is a prime.

It is a super-2 number, since 2×349797923² = 244717173870227858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349797953) 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, 194963 + ... + 196748.

It is an arithmetic number, because the mean of its divisors is an integer number (47005440).

Almost surely, 2^349797923 is an apocalyptic number.

349797923 is a deficient number, since it is larger than the sum of its proper divisors (26245597).

349797923 is a wasteful number, since it uses less digits than its factorization.

349797923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391777.

The product of its digits is 2571912, while the sum is 53.

The square root of 349797923 is about 18702.8854191004. The cubic root of 349797923 is about 704.5942188115.

The spelling of 349797923 in words is "three hundred forty-nine million, seven hundred ninety-seven thousand, nine hundred twenty-three".