397699343 has 8 divisors (see below), whose sum is σ = 421559712. Its totient is φ = 373890816.

The previous prime is 397699339. The next prime is 397699349. The reversal of 397699343 is 343996793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397699343 - 2² = 397699339 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 (397699349) 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, 3446 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (52694964).

Almost surely, 2^397699343 is an apocalyptic number.

397699343 is a deficient number, since it is larger than the sum of its proper divisors (23860369).

397699343 is a wasteful number, since it uses less digits than its factorization.

397699343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25921.

The product of its digits is 3306744, while the sum is 53.

The square root of 397699343 is about 19942.4006328225. The cubic root of 397699343 is about 735.3909672785.

The spelling of 397699343 in words is "three hundred ninety-seven million, six hundred ninety-nine thousand, three hundred forty-three".