561892 has 6 divisors (see below), whose sum is σ = 983318. Its totient is φ = 280944.

The previous prime is 561839. The next prime is 561907. The reversal of 561892 is 298165.

It can be written as a sum of positive squares in only one way, i.e., 443556 + 118336 = 666^2 + 344^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

561892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70233 + ... + 70240.

2⁵⁶¹⁸⁹² is an apocalyptic number.

It is an amenable number.

561892 is a deficient number, since it is larger than the sum of its proper divisors (421426).

561892 is a wasteful number, since it uses less digits than its factorization.

561892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140477 (or 140475 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 561892 is about 749.5945570774. The cubic root of 561892 is about 82.5184286961.

The spelling of 561892 in words is "five hundred sixty-one thousand, eight hundred ninety-two".