397453 has 4 divisors (see below), whose sum is σ = 454240. Its totient is φ = 340668.

The previous prime is 397433. The next prime is 397459. The reversal of 397453 is 354793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 397453 - 2¹⁷ = 266381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28383 + ... + 28396.

It is an arithmetic number, because the mean of its divisors is an integer number (113560).

2³⁹⁷⁴⁵³ is an apocalyptic number.

It is an amenable number.

397453 is a deficient number, since it is larger than the sum of its proper divisors (56787).

397453 is an equidigital number, since it uses as much as digits as its factorization.

397453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56786.

The product of its digits is 11340, while the sum is 31.

The square root of 397453 is about 630.4387361195. The cubic root of 397453 is about 73.5239097248.

The spelling of 397453 in words is "three hundred ninety-seven thousand, four hundred fifty-three".