28073816 has 16 divisors (see below), whose sum is σ = 52963800. Its totient is φ = 13950144.

The previous prime is 28073813. The next prime is 28073819. The reversal of 28073816 is 61837082.

It is an interprime number because it is at equal distance from previous prime (28073813) and next prime (28073819).

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28073813) 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, 9461 + ... + 12068.

Almost surely, 2^28073816 is an apocalyptic number.

It is an amenable number.

28073816 is a deficient number, since it is larger than the sum of its proper divisors (24889984).

28073816 is a wasteful number, since it uses less digits than its factorization.

28073816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21698 (or 21694 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 28073816 is about 5298.4729875692. The cubic root of 28073816 is about 303.9255069091.

The spelling of 28073816 in words is "twenty-eight million, seventy-three thousand, eight hundred sixteen".