397292983 has 4 divisors (see below), whose sum is σ = 418203160. Its totient is φ = 376382808.

The previous prime is 397292981. The next prime is 397293019. The reversal of 397292983 is 389292793.

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 397292983 - 2¹ = 397292981 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 397292983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397292981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10455060 + ... + 10455097.

It is an arithmetic number, because the mean of its divisors is an integer number (104550790).

Almost surely, 2^397292983 is an apocalyptic number.

397292983 is a deficient number, since it is larger than the sum of its proper divisors (20910177).

397292983 is a wasteful number, since it uses less digits than its factorization.

397292983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910176.

The product of its digits is 1469664, while the sum is 52.

The square root of 397292983 is about 19932.2096868360. The cubic root of 397292983 is about 735.1404134226.

The spelling of 397292983 in words is "three hundred ninety-seven million, two hundred ninety-two thousand, nine hundred eighty-three".