9876621 has 8 divisors (see below), whose sum is σ = 13188960. Its totient is φ = 6574352.

The previous prime is 9876611. The next prime is 9876623. The reversal of 9876621 is 1266789.

9876621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9876621 - 2⁵ = 9876589 is a prime.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9876621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9876623) 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, 190 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (1648620).

Almost surely, 2^9876621 is an apocalyptic number.

It is an amenable number.

9876621 is a deficient number, since it is larger than the sum of its proper divisors (3312339).

9876621 is a wasteful number, since it uses less digits than its factorization.

9876621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035.

The product of its digits is 36288, while the sum is 39.

The square root of 9876621 is about 3142.7091815820. The cubic root of 9876621 is about 214.5537598691.

The spelling of 9876621 in words is "nine million, eight hundred seventy-six thousand, six hundred twenty-one".