343947897 has 8 divisors (see below), whose sum is σ = 509552480. Its totient is φ = 229298580.

The previous prime is 343947889. The next prime is 343947941. The reversal of 343947897 is 798749343.

It is not a de Polignac number, because 343947897 - 2³ = 343947889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343947827) 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, 6369379 + ... + 6369432.

It is an arithmetic number, because the mean of its divisors is an integer number (63694060).

Almost surely, 2^343947897 is an apocalyptic number.

It is an amenable number.

343947897 is a deficient number, since it is larger than the sum of its proper divisors (165604583).

343947897 is a wasteful number, since it uses less digits than its factorization.

343947897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738820 (or 12738814 counting only the distinct ones).

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

The square root of 343947897 is about 18545.8323350558. The cubic root of 343947897 is about 700.6442347972.

The spelling of 343947897 in words is "three hundred forty-three million, nine hundred forty-seven thousand, eight hundred ninety-seven".