8994021 has 4 divisors (see below), whose sum is σ = 11992032. Its totient is φ = 5996012.

The previous prime is 8994017. The next prime is 8994053. The reversal of 8994021 is 1204998.

8994021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8994021 - 2² = 8994017 is a prime.

It is a Curzon number.

8994021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8994091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499001 + ... + 1499006.

It is an arithmetic number, because the mean of its divisors is an integer number (2998008).

Almost surely, 2^8994021 is an apocalyptic number.

It is an amenable number.

8994021 is a deficient number, since it is larger than the sum of its proper divisors (2998011).

8994021 is a wasteful number, since it uses less digits than its factorization.

8994021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998010.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 8994021 is about 2999.0033344430. The cubic root of 8994021 is about 207.9623098005.

The spelling of 8994021 in words is "eight million, nine hundred ninety-four thousand, twenty-one".