8721876 has 24 divisors (see below), whose sum is σ = 21236544. Its totient is φ = 2780800.

The previous prime is 8721851. The next prime is 8721877. The reversal of 8721876 is 6781278.

It is a super-2 number, since 2×8721876² = 152142241918752, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8721877) 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, 15525 + ... + 16076.

It is an arithmetic number, because the mean of its divisors is an integer number (884856).

Almost surely, 2^8721876 is an apocalyptic number.

It is an amenable number.

8721876 is an abundant number, since it is smaller than the sum of its proper divisors (12514668).

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

8721876 is a wasteful number, since it uses less digits than its factorization.

8721876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31631 (or 31629 counting only the distinct ones).

The product of its digits is 37632, while the sum is 39.

The square root of 8721876 is about 2953.2822418455. The cubic root of 8721876 is about 205.8432527396.

The spelling of 8721876 in words is "eight million, seven hundred twenty-one thousand, eight hundred seventy-six".