561996862 has 16 divisors (see below), whose sum is σ = 966015072. Its totient is φ = 240207840.

The previous prime is 561996823. The next prime is 561996913. The reversal of 561996862 is 268699165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48589 + ... + 59032.

It is an arithmetic number, because the mean of its divisors is an integer number (60375942).

Almost surely, 2^561996862 is an apocalyptic number.

561996862 is a deficient number, since it is larger than the sum of its proper divisors (404018210).

561996862 is a wasteful number, since it uses less digits than its factorization.

561996862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108003.

The product of its digits is 1399680, while the sum is 52.

The square root of 561996862 is about 23706.4729978966. The cubic root of 561996862 is about 825.2356165715.

The spelling of 561996862 in words is "five hundred sixty-one million, nine hundred ninety-six thousand, eight hundred sixty-two".