397683219 has 8 divisors (see below), whose sum is σ = 535711120. Its totient is φ = 262388736.

The previous prime is 397683199. The next prime is 397683229. The reversal of 397683219 is 912386793.

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

It is not a de Polignac number, because 397683219 - 2⁹ = 397682707 is a prime.

It is a super-2 number, since 2×397683219² = 316303885348403922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397683229) 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, 683014 + ... + 683595.

It is an arithmetic number, because the mean of its divisors is an integer number (66963890).

Almost surely, 2^397683219 is an apocalyptic number.

397683219 is a deficient number, since it is larger than the sum of its proper divisors (138027901).

397683219 is a wasteful number, since it uses less digits than its factorization.

397683219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366709.

The product of its digits is 489888, while the sum is 48.

The square root of 397683219 is about 19941.9963644566. The cubic root of 397683219 is about 735.3810287789.

The spelling of 397683219 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, two hundred nineteen".