7481393 has 4 divisors (see below), whose sum is σ = 7663908. Its totient is φ = 7298880.

The previous prime is 7481389. The next prime is 7481401. The reversal of 7481393 is 3931847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4355569 + 3125824 = 2087^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 7481393 - 2² = 7481389 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7481093) 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, 91196 + ... + 91277.

It is an arithmetic number, because the mean of its divisors is an integer number (1915977).

Almost surely, 2^7481393 is an apocalyptic number.

It is an amenable number.

7481393 is a deficient number, since it is larger than the sum of its proper divisors (182515).

7481393 is a wasteful number, since it uses less digits than its factorization.

7481393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182514.

The product of its digits is 18144, while the sum is 35.

The square root of 7481393 is about 2735.2135200017. The cubic root of 7481393 is about 195.5813725791.

The spelling of 7481393 in words is "seven million, four hundred eighty-one thousand, three hundred ninety-three".