7979912 has 16 divisors (see below), whose sum is σ = 15327900. Its totient is φ = 3892480.

The previous prime is 7979911. The next prime is 7979921. The reversal of 7979912 is 2199797.

7979912 = 384² + 385² + ... + 431².

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 106276 = 2806^2 + 326^2 .

It is not an unprimeable number, because it can be changed into a prime (7979911) 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 3 ways as a sum of consecutive naturals, for example, 11837 + ... + 12492.

Almost surely, 2^7979912 is an apocalyptic number.

It is an amenable number.

7979912 is a deficient number, since it is larger than the sum of its proper divisors (7347988).

7979912 is a wasteful number, since it uses less digits than its factorization.

7979912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24376 (or 24372 counting only the distinct ones).

The product of its digits is 71442, while the sum is 44.

The square root of 7979912 is about 2824.8738024910. The cubic root of 7979912 is about 199.8324596904.

The spelling of 7979912 in words is "seven million, nine hundred seventy-nine thousand, nine hundred twelve".