908563 has 4 divisors (see below), whose sum is σ = 917488. Its totient is φ = 899640.

The previous prime is 908549. The next prime is 908573. The reversal of 908563 is 365809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-908563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (908503) 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, 4308 + ... + 4513.

It is an arithmetic number, because the mean of its divisors is an integer number (229372).

2⁹⁰⁸⁵⁶³ is an apocalyptic number.

908563 is a deficient number, since it is larger than the sum of its proper divisors (8925).

908563 is a wasteful number, since it uses less digits than its factorization.

908563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 908563 is about 953.1857111812. The cubic root of 908563 is about 96.8541756141.

The spelling of 908563 in words is "nine hundred eight thousand, five hundred sixty-three".