28625806 has 8 divisors (see below), whose sum is σ = 46842264. Its totient is φ = 13011720.

The previous prime is 28625801. The next prime is 28625809. The reversal of 28625806 is 60852682.

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 (28625801) 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, 650565 + ... + 650608.

It is an arithmetic number, because the mean of its divisors is an integer number (5855283).

Almost surely, 2^28625806 is an apocalyptic number.

28625806 is a deficient number, since it is larger than the sum of its proper divisors (18216458).

28625806 is a wasteful number, since it uses less digits than its factorization.

28625806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301186.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 28625806 is about 5350.3089630413. The cubic root of 28625806 is about 305.9045297168.

It can be divided in two parts, 2862 and 5806, that added together give a palindrome (8668).

The spelling of 28625806 in words is "twenty-eight million, six hundred twenty-five thousand, eight hundred six".