8849721 has 8 divisors (see below), whose sum is σ = 11916864. Its totient is φ = 5841200.

The previous prime is 8849681. The next prime is 8849747. The reversal of 8849721 is 1279488.

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 8849721 - 2¹³ = 8841529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8849721.

It is not an unprimeable number, because it can be changed into a prime (8849791) 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, 14301 + ... + 14906.

It is an arithmetic number, because the mean of its divisors is an integer number (1489608).

Almost surely, 2^8849721 is an apocalyptic number.

It is an amenable number.

8849721 is a deficient number, since it is larger than the sum of its proper divisors (3067143).

8849721 is a wasteful number, since it uses less digits than its factorization.

8849721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29311.

The product of its digits is 32256, while the sum is 39.

The square root of 8849721 is about 2974.8480633471. The cubic root of 8849721 is about 206.8441263943.

The spelling of 8849721 in words is "eight million, eight hundred forty-nine thousand, seven hundred twenty-one".