561833971 has 8 divisors (see below), whose sum is σ = 591667200. Its totient is φ = 532027080.

The previous prime is 561833959. The next prime is 561833977. The reversal of 561833971 is 179338165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561833971 - 2⁵ = 561833939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561833977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49566 + ... + 59836.

It is an arithmetic number, because the mean of its divisors is an integer number (73958400).

Almost surely, 2^561833971 is an apocalyptic number.

561833971 is a deficient number, since it is larger than the sum of its proper divisors (29833229).

561833971 is a wasteful number, since it uses less digits than its factorization.

561833971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13169.

The product of its digits is 136080, while the sum is 43.

The square root of 561833971 is about 23703.0371682618. The cubic root of 561833971 is about 825.1558792080.

The spelling of 561833971 in words is "five hundred sixty-one million, eight hundred thirty-three thousand, nine hundred seventy-one".