349761791 has 4 divisors (see below), whose sum is σ = 370336032. Its totient is φ = 329187552.

The previous prime is 349761767. The next prime is 349761799. The reversal of 349761791 is 197167943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349761791 - 2²⁶ = 282652927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349761799) 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, 10287095 + ... + 10287128.

It is an arithmetic number, because the mean of its divisors is an integer number (92584008).

Almost surely, 2^349761791 is an apocalyptic number.

349761791 is a deficient number, since it is larger than the sum of its proper divisors (20574241).

349761791 is a wasteful number, since it uses less digits than its factorization.

349761791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574240.

The product of its digits is 285768, while the sum is 47.

The square root of 349761791 is about 18701.9194469445. The cubic root of 349761791 is about 704.5699578756.

The spelling of 349761791 in words is "three hundred forty-nine million, seven hundred sixty-one thousand, seven hundred ninety-one".