7378993 has 2 divisors, whose sum is σ = 7378994. Its totient is φ = 7378992.

The previous prime is 7378981. The next prime is 7378997. The reversal of 7378993 is 3998737.

7378993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 861184 = 2553^2 + 928^2 .

It is an emirp because it is prime and its reverse (3998737) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7378993 is a prime.

It is not a weakly prime, because it can be changed into another prime (7378997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3689496 + 3689497.

It is an arithmetic number, because the mean of its divisors is an integer number (3689497).

Almost surely, 2^7378993 is an apocalyptic number.

It is an amenable number.

7378993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7378993 is an equidigital number, since it uses as much as digits as its factorization.

7378993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 46.

The square root of 7378993 is about 2716.4301942071. The cubic root of 7378993 is about 194.6849437995.

It can be divided in two parts, 737 and 8993, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 7378993 in words is "seven million, three hundred seventy-eight thousand, nine hundred ninety-three".