343926997 has 4 divisors (see below), whose sum is σ = 347141376. Its totient is φ = 340712620.

The previous prime is 343926887. The next prime is 343927009. The reversal of 343926997 is 799629343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343926997 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 (343926097) 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, 1607029 + ... + 1607242.

It is an arithmetic number, because the mean of its divisors is an integer number (86785344).

Almost surely, 2^343926997 is an apocalyptic number.

It is an amenable number.

343926997 is a deficient number, since it is larger than the sum of its proper divisors (3214379).

343926997 is a wasteful number, since it uses less digits than its factorization.

343926997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214378.

The product of its digits is 2204496, while the sum is 52.

The square root of 343926997 is about 18545.2688575820. The cubic root of 343926997 is about 700.6300429566.

The spelling of 343926997 in words is "three hundred forty-three million, nine hundred twenty-six thousand, nine hundred ninety-seven".