8344921 has 8 divisors (see below), whose sum is σ = 9277184. Its totient is φ = 7454160.

The previous prime is 8344913. The next prime is 8344927. The reversal of 8344921 is 1294438.

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 8344921 - 2³ = 8344913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

8344921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8344927) 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, 9951 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (1159648).

Almost surely, 2^8344921 is an apocalyptic number.

It is an amenable number.

8344921 is a deficient number, since it is larger than the sum of its proper divisors (932263).

8344921 is a wasteful number, since it uses less digits than its factorization.

8344921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20751.

The product of its digits is 6912, while the sum is 31.

The square root of 8344921 is about 2888.7576914653. The cubic root of 8344921 is about 202.8339943688.

The spelling of 8344921 in words is "eight million, three hundred forty-four thousand, nine hundred twenty-one".