28763803 has 4 divisors (see below), whose sum is σ = 28780920. Its totient is φ = 28746688.

The previous prime is 28763797. The next prime is 28763807. The reversal of 28763803 is 30836782.

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

It is a cyclic number.

It is not a de Polignac number, because 28763803 - 2⁹ = 28763291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28763807) 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, 5725 + ... + 9502.

It is an arithmetic number, because the mean of its divisors is an integer number (7195230).

Almost surely, 2^28763803 is an apocalyptic number.

28763803 is a deficient number, since it is larger than the sum of its proper divisors (17117).

28763803 is a wasteful number, since it uses less digits than its factorization.

28763803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17116.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 28763803 is about 5363.1896293157. The cubic root of 28763803 is about 306.3953019786.

The spelling of 28763803 in words is "twenty-eight million, seven hundred sixty-three thousand, eight hundred three".