396983291 has 8 divisors (see below), whose sum is σ = 419411520. Its totient is φ = 375137728.

The previous prime is 396983263. The next prime is 396983297. The reversal of 396983291 is 192389693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396983291 - 2¹⁸ = 396721147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396983297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144266 + ... + 146991.

It is an arithmetic number, because the mean of its divisors is an integer number (52426440).

Almost surely, 2^396983291 is an apocalyptic number.

396983291 is a deficient number, since it is larger than the sum of its proper divisors (22428229).

396983291 is a wasteful number, since it uses less digits than its factorization.

396983291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291333.

The product of its digits is 629856, while the sum is 50.

The square root of 396983291 is about 19924.4395404237. The cubic root of 396983291 is about 734.9493484770.

The spelling of 396983291 in words is "three hundred ninety-six million, nine hundred eighty-three thousand, two hundred ninety-one".