28979183 has 2 divisors, whose sum is σ = 28979184. Its totient is φ = 28979182.

The previous prime is 28979179. The next prime is 28979191. The reversal of 28979183 is 38197982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28979183 - 2² = 28979179 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28979113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14489591 + 14489592.

It is an arithmetic number, because the mean of its divisors is an integer number (14489592).

Almost surely, 2^28979183 is an apocalyptic number.

28979183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28979183 is an equidigital number, since it uses as much as digits as its factorization.

28979183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 28979183 is about 5383.2316502265. The cubic root of 28979183 is about 307.1581518459.

The spelling of 28979183 in words is "twenty-eight million, nine hundred seventy-nine thousand, one hundred eighty-three".