8676921 has 8 divisors (see below), whose sum is σ = 12621024. Its totient is φ = 5258720.

The previous prime is 8676893. The next prime is 8676937. The reversal of 8676921 is 1296768.

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 8676921 - 2¹⁴ = 8660537 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 8³ + 6⁵ + 7 + 6⁷ + 9² + 2²³ + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 8676921.

It is not an unprimeable number, because it can be changed into a prime (8676971) 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, 131436 + ... + 131501.

It is an arithmetic number, because the mean of its divisors is an integer number (1577628).

Almost surely, 2^8676921 is an apocalyptic number.

It is an amenable number.

8676921 is a deficient number, since it is larger than the sum of its proper divisors (3944103).

8676921 is a wasteful number, since it uses less digits than its factorization.

8676921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262951.

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

The square root of 8676921 is about 2945.6613858351. The cubic root of 8676921 is about 205.4889853853.

The spelling of 8676921 in words is "eight million, six hundred seventy-six thousand, nine hundred twenty-one".