28925983 has 4 divisors (see below), whose sum is σ = 28939680. Its totient is φ = 28912288.

The previous prime is 28925921. The next prime is 28926011. The reversal of 28925983 is 38952982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38952982 = 2 ⋅19476491.

It is a cyclic number.

It is not a de Polignac number, because 28925983 - 2¹⁷ = 28794911 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 (28925783) 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 3 ways as a sum of consecutive naturals, for example, 2935 + ... + 8152.

It is an arithmetic number, because the mean of its divisors is an integer number (7234920).

Almost surely, 2^28925983 is an apocalyptic number.

28925983 is a deficient number, since it is larger than the sum of its proper divisors (13697).

28925983 is a wasteful number, since it uses less digits than its factorization.

28925983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696.

The product of its digits is 311040, while the sum is 46.

The square root of 28925983 is about 5378.2881105422. The cubic root of 28925983 is about 306.9700763415.

The spelling of 28925983 in words is "twenty-eight million, nine hundred twenty-five thousand, nine hundred eighty-three".