2628806 has 8 divisors (see below), whose sum is σ = 3953880. Its totient is φ = 1310848.

The previous prime is 2628781. The next prime is 2628809. The reversal of 2628806 is 6088262.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628809) 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, 731 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (494235).

2^2628806 is an apocalyptic number.

2628806 is a deficient number, since it is larger than the sum of its proper divisors (1325074).

2628806 is a wasteful number, since it uses less digits than its factorization.

2628806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2628806 is about 1621.3593062613. The cubic root of 2628806 is about 138.0128462451.

The spelling of 2628806 in words is "two million, six hundred twenty-eight thousand, eight hundred six".