7483921 has 4 divisors (see below), whose sum is σ = 7568100. Its totient is φ = 7399744.

The previous prime is 7483919. The next prime is 7483933. The reversal of 7483921 is 1293847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1293847 = 31 ⋅41737.

It can be written as a sum of positive squares in 2 ways, for example, as 3027600 + 4456321 = 1740^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 7483921 - 2¹ = 7483919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7483981) 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, 41956 + ... + 42133.

It is an arithmetic number, because the mean of its divisors is an integer number (1892025).

Almost surely, 2^7483921 is an apocalyptic number.

It is an amenable number.

7483921 is a deficient number, since it is larger than the sum of its proper divisors (84179).

7483921 is an equidigital number, since it uses as much as digits as its factorization.

7483921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84178.

The product of its digits is 12096, while the sum is 34.

The square root of 7483921 is about 2735.6756021137. The cubic root of 7483921 is about 195.6033994053.

The spelling of 7483921 in words is "seven million, four hundred eighty-three thousand, nine hundred twenty-one".