2660806 has 8 divisors (see below), whose sum is σ = 4226040. Its totient is φ = 1252128.

The previous prime is 2660803. The next prime is 2660809. The reversal of 2660806 is 6080662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2660803) and next prime (2660809).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39096 + ... + 39163.

It is an arithmetic number, because the mean of its divisors is an integer number (528255).

2^2660806 is an apocalyptic number.

2660806 is a deficient number, since it is larger than the sum of its proper divisors (1565234).

2660806 is a wasteful number, since it uses less digits than its factorization.

2660806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78278.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2660806 is about 1631.1977194687. The cubic root of 2660806 is about 138.5705913740.

The spelling of 2660806 in words is "two million, six hundred sixty thousand, eight hundred six".