349553979 has 12 divisors (see below), whose sum is σ = 505201632. Its totient is φ = 232902000.

The previous prime is 349553951. The next prime is 349554011. The reversal of 349553979 is 979355943.

It is a happy number.

349553979 is a `hidden beast` number, since 34 + 9 + 5 + 539 + 79 = 666.

It is not a de Polignac number, because 349553979 - 2⁸ = 349553723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349553909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6894 + ... + 27324.

It is an arithmetic number, because the mean of its divisors is an integer number (42100136).

Almost surely, 2^349553979 is an apocalyptic number.

349553979 is a deficient number, since it is larger than the sum of its proper divisors (155647653).

349553979 is a wasteful number, since it uses less digits than its factorization.

349553979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338 (or 22335 counting only the distinct ones).

The product of its digits is 4592700, while the sum is 54.

The square root of 349553979 is about 18696.3627211284. The cubic root of 349553979 is about 704.4303894573.

The spelling of 349553979 in words is "three hundred forty-nine million, five hundred fifty-three thousand, nine hundred seventy-nine".