7770013 has 2 divisors, whose sum is σ = 7770014. Its totient is φ = 7770012.

The previous prime is 7770001. The next prime is 7770017. The reversal of 7770013 is 3100777.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6692569 + 1077444 = 2587^2 + 1038^2 .

It is a cyclic number.

It is not a de Polignac number, because 7770013 - 2¹⁷ = 7638941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7770013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7770017) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3885006 + 3885007.

It is an arithmetic number, because the mean of its divisors is an integer number (3885007).

Almost surely, 2^7770013 is an apocalyptic number.

It is an amenable number.

7770013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7770013 is an equidigital number, since it uses as much as digits as its factorization.

7770013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1029, while the sum is 25.

The square root of 7770013 is about 2787.4743048143. The cubic root of 7770013 is about 198.0647766155.

The spelling of 7770013 in words is "seven million, seven hundred seventy thousand, thirteen".