7912768 has 14 divisors (see below), whose sum is σ = 15702026. Its totient is φ = 3956352.

The previous prime is 7912763. The next prime is 7912771. The reversal of 7912768 is 8672197.

It can be written as a sum of positive squares in only one way, i.e., 4981824 + 2930944 = 2232^2 + 1712^2 .

It is a super-2 number, since 2×7912768² = 125223794843648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7912768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912763) 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, 61755 + ... + 61882.

Almost surely, 2^7912768 is an apocalyptic number.

It is an amenable number.

7912768 is a deficient number, since it is larger than the sum of its proper divisors (7789258).

7912768 is a wasteful number, since it uses less digits than its factorization.

7912768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123649 (or 123639 counting only the distinct ones).

The product of its digits is 42336, while the sum is 40.

The square root of 7912768 is about 2812.9642727912. The cubic root of 7912768 is about 199.2704083834.

The spelling of 7912768 in words is "seven million, nine hundred twelve thousand, seven hundred sixty-eight".