397345543793 has 16 divisors (see below), whose sum is σ = 441682668096. Its totient is φ = 354428835840.

The previous prime is 397345543781. The next prime is 397345543799.

397345543793 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 397345543793 - 2²⁴ = 397328766577 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397345543799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1126955 + ... + 1436912.

It is an arithmetic number, because the mean of its divisors is an integer number (27605166756).

Almost surely, 2^397345543793 is an apocalyptic number.

It is an amenable number.

397345543793 is a deficient number, since it is larger than the sum of its proper divisors (44337124303).

397345543793 is a wasteful number, since it uses less digits than its factorization.

397345543793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564144.

The product of its digits is 128595600, while the sum is 62.

The spelling of 397345543793 in words is "three hundred ninety-seven billion, three hundred forty-five million, five hundred forty-three thousand, seven hundred ninety-three".