7913806 has 16 divisors (see below), whose sum is σ = 12863664. Its totient is φ = 3636864.

The previous prime is 7913797. The next prime is 7913809. The reversal of 7913806 is 6083197.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913809) 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 in 7 ways as a sum of consecutive naturals, for example, 1245 + ... + 4168.

It is an arithmetic number, because the mean of its divisors is an integer number (803979).

Almost surely, 2^7913806 is an apocalyptic number.

7913806 is a deficient number, since it is larger than the sum of its proper divisors (4949858).

7913806 is a wasteful number, since it uses less digits than its factorization.

7913806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7913806 is about 2813.1487696174. The cubic root of 7913806 is about 199.2791214591.

Subtracting from 7913806 its reverse (6083197), we obtain a square (1830609 = 1353²).

The spelling of 7913806 in words is "seven million, nine hundred thirteen thousand, eight hundred six".