396994366943 has 4 divisors (see below), whose sum is σ = 397017903840. Its totient is φ = 396970830048.

The previous prime is 396994366939. The next prime is 396994366961. The reversal of 396994366943 is 349663499693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396994366943 - 2² = 396994366939 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 (396994366913) 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, 11743130 + ... + 11776887.

It is an arithmetic number, because the mean of its divisors is an integer number (99254475960).

Almost surely, 2^396994366943 is an apocalyptic number.

396994366943 is a deficient number, since it is larger than the sum of its proper divisors (23536897).

396994366943 is a wasteful number, since it uses less digits than its factorization.

396994366943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23536896.

The product of its digits is 612220032, while the sum is 71.

The spelling of 396994366943 in words is "three hundred ninety-six billion, nine hundred ninety-four million, three hundred sixty-six thousand, nine hundred forty-three".