566456889 has 4 divisors (see below), whose sum is σ = 755275856. Its totient is φ = 377637924.

The previous prime is 566456867. The next prime is 566456921. The reversal of 566456889 is 988654665.

It is a happy number.

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 566456889 - 2¹³ = 566448697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566456809) 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, 94409479 + ... + 94409484.

It is an arithmetic number, because the mean of its divisors is an integer number (188818964).

Almost surely, 2^566456889 is an apocalyptic number.

It is an amenable number.

566456889 is a deficient number, since it is larger than the sum of its proper divisors (188818967).

566456889 is a wasteful number, since it uses less digits than its factorization.

566456889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188818966.

The product of its digits is 12441600, while the sum is 57.

The square root of 566456889 is about 23800.3548082796. The cubic root of 566456889 is about 827.4129000489.

The spelling of 566456889 in words is "five hundred sixty-six million, four hundred fifty-six thousand, eight hundred eighty-nine".