2659868 has 6 divisors (see below), whose sum is σ = 4654776. Its totient is φ = 1329932.

The previous prime is 2659861. The next prime is 2659879. The reversal of 2659868 is 8689562.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332480 + ... + 332487.

It is an arithmetic number, because the mean of its divisors is an integer number (775796).

2^2659868 is an apocalyptic number.

It is an amenable number.

2659868 is a deficient number, since it is larger than the sum of its proper divisors (1994908).

2659868 is a wasteful number, since it uses less digits than its factorization.

2659868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664971 (or 664969 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 2659868 is about 1630.9101753316. The cubic root of 2659868 is about 138.5543062720.

The spelling of 2659868 in words is "two million, six hundred fifty-nine thousand, eight hundred sixty-eight".