7828168 has 8 divisors (see below), whose sum is σ = 14677830. Its totient is φ = 3914080.

The previous prime is 7828157. The next prime is 7828187. The reversal of 7828168 is 8618287.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 3755844 = 2018^2 + 1938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7828168² = 122560428472448, 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 7828168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489253 + ... + 489268.

Almost surely, 2^7828168 is an apocalyptic number.

It is an amenable number.

7828168 is a deficient number, since it is larger than the sum of its proper divisors (6849662).

7828168 is a wasteful number, since it uses less digits than its factorization.

7828168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978527 (or 978523 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 7828168 is about 2797.8863450827. The cubic root of 7828168 is about 198.5576903847.

The spelling of 7828168 in words is "seven million, eight hundred twenty-eight thousand, one hundred sixty-eight".