28982279 has 2 divisors, whose sum is σ = 28982280. Its totient is φ = 28982278.

The previous prime is 28982267. The next prime is 28982293. The reversal of 28982279 is 97228982.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28982279 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 (28982249) 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 as a sum of consecutive naturals, namely, 14491139 + 14491140.

It is an arithmetic number, because the mean of its divisors is an integer number (14491140).

Almost surely, 2^28982279 is an apocalyptic number.

28982279 is a deficient number, since it is larger than the sum of its proper divisors (1).

28982279 is an equidigital number, since it uses as much as digits as its factorization.

28982279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 28982279 is about 5383.5192021576. The cubic root of 28982279 is about 307.1690899019.

The spelling of 28982279 in words is "twenty-eight million, nine hundred eighty-two thousand, two hundred seventy-nine".