7973213 has 2 divisors, whose sum is σ = 7973214. Its totient is φ = 7973212.

The previous prime is 7973209. The next prime is 7973219. The reversal of 7973213 is 3123797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7628644 + 344569 = 2762^2 + 587^2 .

It is an emirp because it is prime and its reverse (3123797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7973213 - 2² = 7973209 is a prime.

It is a Chen prime.

It is equal to p₅₃₈₀₉₇ and since 7973213 and 538097 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7973213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7973219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3986606 + 3986607.

It is an arithmetic number, because the mean of its divisors is an integer number (3986607).

Almost surely, 2^7973213 is an apocalyptic number.

It is an amenable number.

7973213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7973213 is an equidigital number, since it uses as much as digits as its factorization.

7973213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 32.

The square root of 7973213 is about 2823.6878368545. The cubic root of 7973213 is about 199.7765253885.

The spelling of 7973213 in words is "seven million, nine hundred seventy-three thousand, two hundred thirteen".