28763983 has 8 divisors (see below), whose sum is σ = 30535920. Its totient is φ = 27000960.

The previous prime is 28763951. The next prime is 28763989. The reversal of 28763983 is 38936782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28763983 - 2⁵ = 28763951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (3816990).

Almost surely, 2^28763983 is an apocalyptic number.

28763983 is a deficient number, since it is larger than the sum of its proper divisors (1771937).

28763983 is a wasteful number, since it uses less digits than its factorization.

28763983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457.

The product of its digits is 435456, while the sum is 46.

The square root of 28763983 is about 5363.2064103482. The cubic root of 28763983 is about 306.3959411041.

It can be divided in two parts, 2876398 and 3, that added together give a triangular number (2876401 = T₂₃₉₈).

The spelling of 28763983 in words is "twenty-eight million, seven hundred sixty-three thousand, nine hundred eighty-three".