7918916 has 6 divisors (see below), whose sum is σ = 13858110. Its totient is φ = 3959456.

The previous prime is 7918913. The next prime is 7918951. The reversal of 7918916 is 6198197.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 246016 = 2770^2 + 496^2 .

It is not an unprimeable number, because it can be changed into a prime (7918913) 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, 989861 + ... + 989868.

It is an arithmetic number, because the mean of its divisors is an integer number (2309685).

Almost surely, 2^7918916 is an apocalyptic number.

It is an amenable number.

7918916 is a deficient number, since it is larger than the sum of its proper divisors (5939194).

7918916 is a wasteful number, since it uses less digits than its factorization.

7918916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979733 (or 1979731 counting only the distinct ones).

The product of its digits is 27216, while the sum is 41.

The square root of 7918916 is about 2814.0568579899. The cubic root of 7918916 is about 199.3220042057.

The spelling of 7918916 in words is "seven million, nine hundred eighteen thousand, nine hundred sixteen".