28083983 has 8 divisors (see below), whose sum is σ = 29846880. Its totient is φ = 26333440.

The previous prime is 28083961. The next prime is 28084013. The reversal of 28083983 is 38938082.

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 28083983 - 2¹⁰ = 28082959 is a prime.

It is a super-2 number, since 2×28083983² = 1577420202288578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28083983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28083953) 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 in 7 ways as a sum of consecutive naturals, for example, 1838 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (3730860).

Almost surely, 2^28083983 is an apocalyptic number.

28083983 is a deficient number, since it is larger than the sum of its proper divisors (1762897).

28083983 is a wasteful number, since it uses less digits than its factorization.

28083983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 28083983 is about 5299.4323280895. The cubic root of 28083983 is about 303.9621915988.

The spelling of 28083983 in words is "twenty-eight million, eighty-three thousand, nine hundred eighty-three".