9394921 has 4 divisors (see below), whose sum is σ = 9482832. Its totient is φ = 9307012.

The previous prime is 9394909. The next prime is 9394961. The reversal of 9394921 is 1294939.

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 9394921 - 2¹⁵ = 9362153 is a prime.

It is a Duffinian number.

9394921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9394901) 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, 43795 + ... + 44008.

It is an arithmetic number, because the mean of its divisors is an integer number (2370708).

Almost surely, 2^9394921 is an apocalyptic number.

It is an amenable number.

9394921 is a deficient number, since it is larger than the sum of its proper divisors (87911).

9394921 is a wasteful number, since it uses less digits than its factorization.

9394921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87910.

The product of its digits is 17496, while the sum is 37.

The square root of 9394921 is about 3065.1135378645. The cubic root of 9394921 is about 211.0074119721.

The spelling of 9394921 in words is "nine million, three hundred ninety-four thousand, nine hundred twenty-one".