9214021 has 4 divisors (see below), whose sum is σ = 9410112. Its totient is φ = 9017932.

The previous prime is 9214001. The next prime is 9214027. The reversal of 9214021 is 1204129.

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 9214021 - 2¹¹ = 9211973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9214021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9214027) 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, 97975 + ... + 98068.

It is an arithmetic number, because the mean of its divisors is an integer number (2352528).

Almost surely, 2^9214021 is an apocalyptic number.

It is an amenable number.

9214021 is a deficient number, since it is larger than the sum of its proper divisors (196091).

9214021 is a wasteful number, since it uses less digits than its factorization.

9214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196090.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 9214021 is about 3035.4605910800. The cubic root of 9214021 is about 209.6443033813.

It can be divided in two parts, 921402 and 1, that added together give a triangular number (921403 = T₁₃₅₇).

The spelling of 9214021 in words is "nine million, two hundred fourteen thousand, twenty-one".