397533 has 4 divisors (see below), whose sum is σ = 530048. Its totient is φ = 265020.

The previous prime is 397519. The next prime is 397541. The reversal of 397533 is 335793.

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 not a de Polignac number, because 397533 - 2⁴ = 397517 is a prime.

It is a D-number.

It is a Duffinian number.

397533 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 397533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397543) 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, 66253 + ... + 66258.

It is an arithmetic number, because the mean of its divisors is an integer number (132512).

2³⁹⁷⁵³³ is an apocalyptic number.

It is an amenable number.

397533 is a deficient number, since it is larger than the sum of its proper divisors (132515).

397533 is a wasteful number, since it uses less digits than its factorization.

397533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132514.

The product of its digits is 8505, while the sum is 30.

The square root of 397533 is about 630.5021808051. The cubic root of 397533 is about 73.5288423987.

The spelling of 397533 in words is "three hundred ninety-seven thousand, five hundred thirty-three".