343693397 has 4 divisors (see below), whose sum is σ = 345000480. Its totient is φ = 342386316.

The previous prime is 343693379. The next prime is 343693409. The reversal of 343693397 is 793396343.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793396343 = 2311 ⋅343313.

It is a cyclic number.

It is not a de Polignac number, because 343693397 - 2¹² = 343689301 is a prime.

It is a super-2 number, since 2×343693397² = 236250302282799218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343693307) 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, 653147 + ... + 653672.

It is an arithmetic number, because the mean of its divisors is an integer number (86250120).

Almost surely, 2^343693397 is an apocalyptic number.

It is an amenable number.

343693397 is a deficient number, since it is larger than the sum of its proper divisors (1307083).

343693397 is a wasteful number, since it uses less digits than its factorization.

343693397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307082.

The product of its digits is 1102248, while the sum is 47.

The square root of 343693397 is about 18538.9696855030. The cubic root of 343693397 is about 700.4713811394.

The spelling of 343693397 in words is "three hundred forty-three million, six hundred ninety-three thousand, three hundred ninety-seven".