28088006 has 4 divisors (see below), whose sum is σ = 42132012. Its totient is φ = 14044002.

The previous prime is 28088003. The next prime is 28088009. The reversal of 28088006 is 60088082.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28088003) and next prime (28088009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28088003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7022000 + ... + 7022003.

It is an arithmetic number, because the mean of its divisors is an integer number (10533003).

Almost surely, 2^28088006 is an apocalyptic number.

28088006 is a deficient number, since it is larger than the sum of its proper divisors (14044006).

28088006 is a wasteful number, since it uses less digits than its factorization.

28088006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044005.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 28088006 is about 5299.8118834540. The cubic root of 28088006 is about 303.9767049901.

The spelling of 28088006 in words is "twenty-eight million, eighty-eight thousand, six".