7869668 has 6 divisors (see below), whose sum is σ = 13771926. Its totient is φ = 3934832.

The previous prime is 7869661. The next prime is 7869679. The reversal of 7869668 is 8669687.

It can be written as a sum of positive squares in only one way, i.e., 6041764 + 1827904 = 2458^2 + 1352^2 .

It is not an unprimeable number, because it can be changed into a prime (7869661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983705 + ... + 983712.

It is an arithmetic number, because the mean of its divisors is an integer number (2295321).

Almost surely, 2^7869668 is an apocalyptic number.

It is an amenable number.

7869668 is a deficient number, since it is larger than the sum of its proper divisors (5902258).

7869668 is a wasteful number, since it uses less digits than its factorization.

7869668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967421 (or 1967419 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 7869668 is about 2805.2928545876. The cubic root of 7869668 is about 198.9079479647.

The spelling of 7869668 in words is "seven million, eight hundred sixty-nine thousand, six hundred sixty-eight".