872617884 has 96 divisors (see below), whose sum is σ = 2222653440. Its totient is φ = 265636800.

The previous prime is 872617873. The next prime is 872617897. The reversal of 872617884 is 488716278.

It is a super-2 number, since 2×872617884² = 1522923942953274912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675279 + ... + 676569.

It is an arithmetic number, because the mean of its divisors is an integer number (23152640).

Almost surely, 2^872617884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872617884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111326720).

872617884 is an abundant number, since it is smaller than the sum of its proper divisors (1350035556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872617884 is a wasteful number, since it uses less digits than its factorization.

872617884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1429 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 51.

The square root of 872617884 is about 29540.1063640604. The cubic root of 872617884 is about 955.5968360649.

The spelling of 872617884 in words is "eight hundred seventy-two million, six hundred seventeen thousand, eight hundred eighty-four".