397648846793 has 16 divisors (see below), whose sum is σ = 439978158720. Its totient is φ = 356351049600.

The previous prime is 397648846783. The next prime is 397648846807.

397648846793 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 397648846793 - 2¹² = 397648842697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397648846793.

It is not an unprimeable number, because it can be changed into a prime (397648846703) 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, 5365373 + ... + 5438981.

It is an arithmetic number, because the mean of its divisors is an integer number (27498634920).

Almost surely, 2^397648846793 is an apocalyptic number.

It is an amenable number.

397648846793 is a deficient number, since it is larger than the sum of its proper divisors (42329311927).

397648846793 is a wasteful number, since it uses less digits than its factorization.

397648846793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80608.

The product of its digits is 1316818944, while the sum is 74.

The spelling of 397648846793 in words is "three hundred ninety-seven billion, six hundred forty-eight million, eight hundred forty-six thousand, seven hundred ninety-three".