7339921 has 4 divisors (see below), whose sum is σ = 7659072. Its totient is φ = 7020772.

The previous prime is 7339897. The next prime is 7339957. The reversal of 7339921 is 1299337.

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 7339921 - 2⁷ = 7339793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7339961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159541 + ... + 159586.

It is an arithmetic number, because the mean of its divisors is an integer number (1914768).

Almost surely, 2^7339921 is an apocalyptic number.

It is an amenable number.

7339921 is a deficient number, since it is larger than the sum of its proper divisors (319151).

7339921 is a wasteful number, since it uses less digits than its factorization.

7339921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319150.

The product of its digits is 10206, while the sum is 34.

The square root of 7339921 is about 2709.2288570735. The cubic root of 7339921 is about 194.3407145478.

The spelling of 7339921 in words is "seven million, three hundred thirty-nine thousand, nine hundred twenty-one".