7863668 has 24 divisors (see below), whose sum is σ = 14229600. Its totient is φ = 3800160.

The previous prime is 7863643. The next prime is 7863671. The reversal of 7863668 is 8663687.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22358 + ... + 22706.

It is an arithmetic number, because the mean of its divisors is an integer number (592900).

Almost surely, 2^7863668 is an apocalyptic number.

It is an amenable number.

7863668 is a deficient number, since it is larger than the sum of its proper divisors (6365932).

7863668 is a wasteful number, since it uses less digits than its factorization.

7863668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 7863668 is about 2804.2232436095. The cubic root of 7863668 is about 198.8573845814.

The spelling of 7863668 in words is "seven million, eight hundred sixty-three thousand, six hundred sixty-eight".