397219 has 4 divisors (see below), whose sum is σ = 398520. Its totient is φ = 395920.

The previous prime is 397217. The next prime is 397223. The reversal of 397219 is 912793.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 912793 = 7 ⋅130399.

It is a cyclic number.

It is not a de Polignac number, because 397219 - 2¹ = 397217 is a prime.

It is a super-2 number, since 2×397219² = 315565867922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397211) 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, 87 + ... + 895.

It is an arithmetic number, because the mean of its divisors is an integer number (99630).

2³⁹⁷²¹⁹ is an apocalyptic number.

397219 is a deficient number, since it is larger than the sum of its proper divisors (1301).

397219 is an equidigital number, since it uses as much as digits as its factorization.

397219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its digits is 3402, while the sum is 31.

The square root of 397219 is about 630.2531237527. The cubic root of 397219 is about 73.5094778529.

It can be divided in two parts, 397 and 219, that added together give a palindrome (616).

The spelling of 397219 in words is "three hundred ninety-seven thousand, two hundred nineteen".