7940833 has 2 divisors, whose sum is σ = 7940834. Its totient is φ = 7940832.

The previous prime is 7940813. The next prime is 7940851. The reversal of 7940833 is 3380497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 33489 = 2812^2 + 183^2 .

It is an emirp because it is prime and its reverse (3380497) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7940833 is a prime.

It is not a weakly prime, because it can be changed into another prime (7940813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970416 + 3970417.

It is an arithmetic number, because the mean of its divisors is an integer number (3970417).

Almost surely, 2^7940833 is an apocalyptic number.

It is an amenable number.

7940833 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940833 is an equidigital number, since it uses as much as digits as its factorization.

7940833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 7940833 is about 2817.9483671636. The cubic root of 7940833 is about 199.5057211149.

The spelling of 7940833 in words is "seven million, nine hundred forty thousand, eight hundred thirty-three".