349787943 has 8 divisors (see below), whose sum is σ = 518204400. Its totient is φ = 233191944.

The previous prime is 349787941. The next prime is 349787981.

349787943 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 349787943 - 2¹ = 349787941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349787943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349787941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6477528 + ... + 6477581.

It is an arithmetic number, because the mean of its divisors is an integer number (64775550).

Almost surely, 2^349787943 is an apocalyptic number.

349787943 is a deficient number, since it is larger than the sum of its proper divisors (168416457).

349787943 is a wasteful number, since it uses less digits than its factorization.

349787943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955118 (or 12955112 counting only the distinct ones).

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

The square root of 349787943 is about 18702.6186134456. The cubic root of 349787943 is about 704.5875178786.

The spelling of 349787943 in words is "three hundred forty-nine million, seven hundred eighty-seven thousand, nine hundred forty-three".