7920343 has 2 divisors, whose sum is σ = 7920344. Its totient is φ = 7920342.

The previous prime is 7920329. The next prime is 7920347. The reversal of 7920343 is 3430297.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7920343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7920347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3960171 + 3960172.

It is an arithmetic number, because the mean of its divisors is an integer number (3960172).

Almost surely, 2^7920343 is an apocalyptic number.

7920343 is a deficient number, since it is larger than the sum of its proper divisors (1).

7920343 is an equidigital number, since it uses as much as digits as its factorization.

7920343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 7920343 is about 2814.3103951057. The cubic root of 7920343 is about 199.3339761901. Note that the first 3 decimals are identical.

The spelling of 7920343 in words is "seven million, nine hundred twenty thousand, three hundred forty-three".