28073806 has 8 divisors (see below), whose sum is σ = 42183504. Its totient is φ = 14012640.

The previous prime is 28073803. The next prime is 28073809. The reversal of 28073806 is 60837082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28073803) and next prime (28073809).

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 (28073803) 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, 10650 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (5272938).

Almost surely, 2^28073806 is an apocalyptic number.

28073806 is a deficient number, since it is larger than the sum of its proper divisors (14109698).

28073806 is a wasteful number, since it uses less digits than its factorization.

28073806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24266.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28073806 is about 5298.4720439010. The cubic root of 28073806 is about 303.9254708226.

The spelling of 28073806 in words is "twenty-eight million, seventy-three thousand, eight hundred six".