397406833983 has 16 divisors (see below), whose sum is σ = 619737753600. Its totient is φ = 250993789560.

The previous prime is 397406833951. The next prime is 397406834017. The reversal of 397406833983 is 389338604793.

It is not a de Polignac number, because 397406833983 - 2⁵ = 397406833951 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 397406833983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397406833913) 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, 387335583 + ... + 387336608.

It is an arithmetic number, because the mean of its divisors is an integer number (38733609600).

Almost surely, 2^397406833983 is an apocalyptic number.

397406833983 is a deficient number, since it is larger than the sum of its proper divisors (222330919617).

397406833983 is a wasteful number, since it uses less digits than its factorization.

397406833983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774672219 (or 774672213 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 63.

The spelling of 397406833983 in words is "three hundred ninety-seven billion, four hundred six million, eight hundred thirty-three thousand, nine hundred eighty-three".