7166993 has 2 divisors, whose sum is σ = 7166994. Its totient is φ = 7166992.

The previous prime is 7166989. The next prime is 7167001. The reversal of 7166993 is 3996617.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 3214849 = 1988^2 + 1793^2 .

It is a cyclic number.

It is not a de Polignac number, because 7166993 - 2² = 7166989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7166993.

It is not a weakly prime, because it can be changed into another prime (7166963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3583496 + 3583497.

It is an arithmetic number, because the mean of its divisors is an integer number (3583497).

Almost surely, 2^7166993 is an apocalyptic number.

It is an amenable number.

7166993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7166993 is an equidigital number, since it uses as much as digits as its factorization.

7166993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 7166993 is about 2677.1240165521. The cubic root of 7166993 is about 192.8023516440.

The spelling of 7166993 in words is "seven million, one hundred sixty-six thousand, nine hundred ninety-three".