563977 has 4 divisors (see below), whose sum is σ = 593680. Its totient is φ = 534276.

The previous prime is 563971. The next prime is 563987. The reversal of 563977 is 779365.

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 a de Polignac number, because none of the positive numbers 2^k-563977 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563971) 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, 14823 + ... + 14860.

It is an arithmetic number, because the mean of its divisors is an integer number (148420).

2⁵⁶³⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

563977 is a deficient number, since it is larger than the sum of its proper divisors (29703).

563977 is a wasteful number, since it uses less digits than its factorization.

563977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29702.

The product of its digits is 39690, while the sum is 37.

The square root of 563977 is about 750.9840211349. The cubic root of 563977 is about 82.6203691360.

It can be divided in two parts, 563 and 977, that added together give a triangular number (1540 = T₅₅).

The spelling of 563977 in words is "five hundred sixty-three thousand, nine hundred seventy-seven".