7321873 has 8 divisors (see below), whose sum is σ = 7914816. Its totient is φ = 6733200.

The previous prime is 7321861. The next prime is 7321877. The reversal of 7321873 is 3781237.

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 7321873 - 2⁹ = 7321361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7321877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3138 + ... + 4948.

It is an arithmetic number, because the mean of its divisors is an integer number (989352).

Almost surely, 2^7321873 is an apocalyptic number.

It is an amenable number.

7321873 is a deficient number, since it is larger than the sum of its proper divisors (592943).

7321873 is a wasteful number, since it uses less digits than its factorization.

7321873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 7056, while the sum is 31.

The square root of 7321873 is about 2705.8959699146. The cubic root of 7321873 is about 194.1812968483.

The spelling of 7321873 in words is "seven million, three hundred twenty-one thousand, eight hundred seventy-three".