397563 has 8 divisors (see below), whose sum is σ = 536400. Its totient is φ = 261888.

The previous prime is 397549. The next prime is 397567. The reversal of 397563 is 365793.

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

It is not a de Polignac number, because 397563 - 2⁴ = 397547 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397563.

It is not an unprimeable number, because it can be changed into a prime (397567) 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, 478 + ... + 1011.

It is an arithmetic number, because the mean of its divisors is an integer number (67050).

2³⁹⁷⁵⁶³ is an apocalyptic number.

397563 is a deficient number, since it is larger than the sum of its proper divisors (138837).

397563 is a wasteful number, since it uses less digits than its factorization.

397563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581.

The product of its digits is 17010, while the sum is 33.

The square root of 397563 is about 630.5259709163. The cubic root of 397563 is about 73.5306919808.

The spelling of 397563 in words is "three hundred ninety-seven thousand, five hundred sixty-three".