8921449 has 8 divisors (see below), whose sum is σ = 9180000. Its totient is φ = 8666592.

The previous prime is 8921441. The next prime is 8921453. The reversal of 8921449 is 9441298.

It is a happy number.

8921449 is digitally balanced in base 3, 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 8921449 - 2³ = 8921441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8921441) 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, 4402 + ... + 6100.

It is an arithmetic number, because the mean of its divisors is an integer number (1147500).

Almost surely, 2^8921449 is an apocalyptic number.

8921449 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8921449 is a deficient number, since it is larger than the sum of its proper divisors (258551).

8921449 is a wasteful number, since it uses less digits than its factorization.

8921449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847.

The product of its digits is 20736, while the sum is 37.

The square root of 8921449 is about 2986.8794753053. The cubic root of 8921449 is about 207.4014551182.

The spelling of 8921449 in words is "eight million, nine hundred twenty-one thousand, four hundred forty-nine".