28963271 has 2 divisors, whose sum is σ = 28963272. Its totient is φ = 28963270.

The previous prime is 28963241. The next prime is 28963303. The reversal of 28963271 is 17236982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28963271 - 2¹⁰ = 28962247 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 (28963241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14481635 + 14481636.

It is an arithmetic number, because the mean of its divisors is an integer number (14481636).

Almost surely, 2^28963271 is an apocalyptic number.

28963271 is a deficient number, since it is larger than the sum of its proper divisors (1).

28963271 is an equidigital number, since it uses as much as digits as its factorization.

28963271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 28963271 is about 5381.7535246423. The cubic root of 28963271 is about 307.1019230312.

The spelling of 28963271 in words is "twenty-eight million, nine hundred sixty-three thousand, two hundred seventy-one".