561862 has 16 divisors (see below), whose sum is σ = 979200. Its totient is φ = 236808.

The previous prime is 561839. The next prime is 561907. The reversal of 561862 is 268165.

It is a self number, because there is not a number n which added to its sum of digits gives 561862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639 + ... + 1237.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2⁵⁶¹⁸⁶² is an apocalyptic number.

561862 is a deficient number, since it is larger than the sum of its proper divisors (417338).

561862 is a wasteful number, since it uses less digits than its factorization.

561862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its digits is 2880, while the sum is 28.

The square root of 561862 is about 749.5745459926. The cubic root of 561862 is about 82.5169600883.

The spelling of 561862 in words is "five hundred sixty-one thousand, eight hundred sixty-two".