565406 has 4 divisors (see below), whose sum is σ = 848112. Its totient is φ = 282702.

The previous prime is 565393. The next prime is 565427. The reversal of 565406 is 604565.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141350 + ... + 141353.

It is an arithmetic number, because the mean of its divisors is an integer number (212028).

2⁵⁶⁵⁴⁰⁶ is an apocalyptic number.

565406 is a deficient number, since it is larger than the sum of its proper divisors (282706).

565406 is a wasteful number, since it uses less digits than its factorization.

565406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282705.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 565406 is about 751.9348376023. The cubic root of 565406 is about 82.6900912054.

The spelling of 565406 in words is "five hundred sixty-five thousand, four hundred six".