349888279 has 4 divisors (see below), whose sum is σ = 376802776. Its totient is φ = 322973784.

The previous prime is 349888261. The next prime is 349888283. The reversal of 349888279 is 972888943.

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 349888279 - 2¹⁵ = 349855511 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 (349888879) 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, 13457229 + ... + 13457254.

It is an arithmetic number, because the mean of its divisors is an integer number (94200694).

Almost surely, 2^349888279 is an apocalyptic number.

349888279 is a deficient number, since it is larger than the sum of its proper divisors (26914497).

349888279 is a wasteful number, since it uses less digits than its factorization.

349888279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26914496.

The product of its digits is 6967296, while the sum is 58.

The square root of 349888279 is about 18705.3008262364. The cubic root of 349888279 is about 704.6548812970.

The spelling of 349888279 in words is "three hundred forty-nine million, eight hundred eighty-eight thousand, two hundred seventy-nine".