349198879 has 4 divisors (see below), whose sum is σ = 349236720. Its totient is φ = 349161040.

The previous prime is 349198877. The next prime is 349198897. The reversal of 349198879 is 978891943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 349198879 - 2¹ = 349198877 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 (349198873) 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, 5019 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (87309180).

Almost surely, 2^349198879 is an apocalyptic number.

349198879 is a deficient number, since it is larger than the sum of its proper divisors (37841).

349198879 is a wasteful number, since it uses less digits than its factorization.

349198879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37840.

The product of its digits is 3919104, while the sum is 58.

The square root of 349198879 is about 18686.8638085688. The cubic root of 349198879 is about 704.1917730125.

The spelling of 349198879 in words is "three hundred forty-nine million, one hundred ninety-eight thousand, eight hundred seventy-nine".