7324381 has 2 divisors, whose sum is σ = 7324382. Its totient is φ = 7324380.

The previous prime is 7324379. The next prime is 7324403. The reversal of 7324381 is 1834237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6081156 + 1243225 = 2466^2 + 1115^2 .

It is an emirp because it is prime and its reverse (1834237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7324381 - 2¹ = 7324379 is a prime.

It is a super-2 number, since 2×7324381² = 107293114066322, which contains 22 as substring.

Together with 7324379, it forms a pair of twin primes.

7324381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7324351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3662190 + 3662191.

It is an arithmetic number, because the mean of its divisors is an integer number (3662191).

Almost surely, 2^7324381 is an apocalyptic number.

It is an amenable number.

7324381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7324381 is an equidigital number, since it uses as much as digits as its factorization.

7324381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 7324381 is about 2706.3593626863. The cubic root of 7324381 is about 194.2034656339.

The spelling of 7324381 in words is "seven million, three hundred twenty-four thousand, three hundred eighty-one".