27808030 has 16 divisors (see below), whose sum is σ = 50240160. Its totient is φ = 11081952.

The previous prime is 27808007. The next prime is 27808051. The reversal of 27808030 is 3080872.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27808030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250 + ... + 7789.

It is an arithmetic number, because the mean of its divisors is an integer number (3140010).

Almost surely, 2^27808030 is an apocalyptic number.

27808030 is a deficient number, since it is larger than the sum of its proper divisors (22432130).

27808030 is a wasteful number, since it uses less digits than its factorization.

27808030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10323.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 27808030 is about 5273.3319637588. The cubic root of 27808030 is about 302.9633361222.

The spelling of 27808030 in words is "twenty-seven million, eight hundred eight thousand, thirty".