347989743 has 16 divisors (see below), whose sum is σ = 520648800. Its totient is φ = 229694400.

The previous prime is 347989717. The next prime is 347989751.

347989743 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 347989743 - 2²⁰ = 346941167 is a prime.

It is a super-2 number, since 2×347989743² = 242193722466412098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 347989743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347989703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61078 + ... + 66531.

It is an arithmetic number, because the mean of its divisors is an integer number (32540550).

Almost surely, 2^347989743 is an apocalyptic number.

347989743 is a deficient number, since it is larger than the sum of its proper divisors (172659057).

347989743 is a wasteful number, since it uses less digits than its factorization.

347989743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127719 (or 127713 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 347989743 is about 18654.4831876951. The cubic root of 347989743 is about 703.3780549767.

The spelling of 347989743 in words is "three hundred forty-seven million, nine hundred eighty-nine thousand, seven hundred forty-three".