349688793 has 8 divisors (see below), whose sum is σ = 493678368. Its totient is φ = 219412544.

The previous prime is 349688791. The next prime is 349688809. The reversal of 349688793 is 397886943.

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 349688793 - 2¹ = 349688791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349688791) 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, 3428271 + ... + 3428372.

It is an arithmetic number, because the mean of its divisors is an integer number (61709796).

Almost surely, 2^349688793 is an apocalyptic number.

It is an amenable number.

349688793 is a deficient number, since it is larger than the sum of its proper divisors (143989575).

349688793 is a wasteful number, since it uses less digits than its factorization.

349688793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856663.

The product of its digits is 7838208, while the sum is 57.

The square root of 349688793 is about 18699.9677272449. The cubic root of 349688793 is about 704.5209380593.

The spelling of 349688793 in words is "three hundred forty-nine million, six hundred eighty-eight thousand, seven hundred ninety-three".