397503 has 12 divisors (see below), whose sum is σ = 594360. Its totient is φ = 255696.

The previous prime is 397493. The next prime is 397517. The reversal of 397503 is 305793.

It is not a de Polignac number, because 397503 - 2¹⁰ = 396479 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 501 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (49530).

2³⁹⁷⁵⁰³ is an apocalyptic number.

397503 is a deficient number, since it is larger than the sum of its proper divisors (196857).

397503 is a wasteful number, since it uses less digits than its factorization.

397503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 397503 is about 630.4783897962. The cubic root of 397503 is about 73.5269927236.

It can be divided in two parts, 397 and 503, that added together give a square (900 = 30²).

The spelling of 397503 in words is "three hundred ninety-seven thousand, five hundred three".