28952771 has 2 divisors, whose sum is σ = 28952772. Its totient is φ = 28952770.

The previous prime is 28952753. The next prime is 28952773. The reversal of 28952771 is 17725982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28952771 is a prime.

It is a Sophie Germain prime.

Together with 28952773, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1796927 and since 28952771 and 1796927 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28952773) 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, 14476385 + 14476386.

It is an arithmetic number, because the mean of its divisors is an integer number (14476386).

Almost surely, 2^28952771 is an apocalyptic number.

28952771 is a deficient number, since it is larger than the sum of its proper divisors (1).

28952771 is an equidigital number, since it uses as much as digits as its factorization.

28952771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 28952771 is about 5380.7779177364. Note that the first 3 decimals coincide. The cubic root of 28952771 is about 307.0648075188.

The spelling of 28952771 in words is "twenty-eight million, nine hundred fifty-two thousand, seven hundred seventy-one".