872630561 has 8 divisors (see below), whose sum is σ = 984787200. Its totient is φ = 765945040.

The previous prime is 872630513. The next prime is 872630599. The reversal of 872630561 is 165036278.

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 872630561 - 2⁶ = 872630497 is a prime.

It is a super-2 number, since 2×872630561² = 1522968191982349442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872633561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367441 + ... + 1368078.

It is an arithmetic number, because the mean of its divisors is an integer number (123098400).

Almost surely, 2^872630561 is an apocalyptic number.

It is an amenable number.

872630561 is a deficient number, since it is larger than the sum of its proper divisors (112156639).

872630561 is a wasteful number, since it uses less digits than its factorization.

872630561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735559.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 872630561 is about 29540.3209359682. The cubic root of 872630561 is about 955.6014635361.

The spelling of 872630561 in words is "eight hundred seventy-two million, six hundred thirty thousand, five hundred sixty-one".