7867913 has 2 divisors, whose sum is σ = 7867914. Its totient is φ = 7867912.

The previous prime is 7867901. The next prime is 7867921. The reversal of 7867913 is 3197687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6091024 + 1776889 = 2468^2 + 1333^2 .

It is an emirp because it is prime and its reverse (3197687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7867913 - 2⁴ = 7867897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7867973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3933956 + 3933957.

It is an arithmetic number, because the mean of its divisors is an integer number (3933957).

Almost surely, 2^7867913 is an apocalyptic number.

It is an amenable number.

7867913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7867913 is an equidigital number, since it uses as much as digits as its factorization.

7867913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 7867913 is about 2804.9800355796. The cubic root of 7867913 is about 198.8931608352.

The spelling of 7867913 in words is "seven million, eight hundred sixty-seven thousand, nine hundred thirteen".