343923957 has 72 divisors (see below), whose sum is σ = 583749504. Its totient is φ = 194268672.

The previous prime is 343923953. The next prime is 343923971. The reversal of 343923957 is 759329343.

It is not a de Polignac number, because 343923957 - 2² = 343923953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343923953) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1215138 + ... + 1215420.

It is an arithmetic number, because the mean of its divisors is an integer number (8107632).

Almost surely, 2^343923957 is an apocalyptic number.

It is an amenable number.

343923957 is a deficient number, since it is larger than the sum of its proper divisors (239825547).

343923957 is a wasteful number, since it uses less digits than its factorization.

343923957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 363 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 343923957 is about 18545.1868957959. The cubic root of 343923957 is about 700.6279786410.

The spelling of 343923957 in words is "three hundred forty-three million, nine hundred twenty-three thousand, nine hundred fifty-seven".