7399993 has 2 divisors, whose sum is σ = 7399994. Its totient is φ = 7399992.

The previous prime is 7399961. The next prime is 7400011. The reversal of 7399993 is 3999937.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6953769 + 446224 = 2637^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 7399993 - 2⁵ = 7399961 is a prime.

7399993 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7399933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3699996 + 3699997.

It is an arithmetic number, because the mean of its divisors is an integer number (3699997).

Almost surely, 2^7399993 is an apocalyptic number.

It is an amenable number.

7399993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7399993 is an equidigital number, since it uses as much as digits as its factorization.

7399993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 413343, while the sum is 49.

The square root of 7399993 is about 2720.2928151212. The cubic root of 7399993 is about 194.8694545921.

The spelling of 7399993 in words is "seven million, three hundred ninety-nine thousand, nine hundred ninety-three".