561684610 has 16 divisors (see below), whose sum is σ = 1054990656. Its totient is φ = 214905328.

The previous prime is 561684601. The next prime is 561684649. The reversal of 561684610 is 16486165.

It is a super-2 number, since 2×561684610² = 630979202221704200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 561684610.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220824 + ... + 1221283.

It is an arithmetic number, because the mean of its divisors is an integer number (65936916).

Almost surely, 2^561684610 is an apocalyptic number.

561684610 is a deficient number, since it is larger than the sum of its proper divisors (493306046).

561684610 is a wasteful number, since it uses less digits than its factorization.

561684610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442137.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 561684610 is about 23699.8862866470. The cubic root of 561684610 is about 825.0827514178.

The spelling of 561684610 in words is "five hundred sixty-one million, six hundred eighty-four thousand, six hundred ten".