28823471 has 2 divisors, whose sum is σ = 28823472. Its totient is φ = 28823470.

The previous prime is 28823441. The next prime is 28823489. The reversal of 28823471 is 17432882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28823471 - 2¹⁰ = 28822447 is a prime.

It is a super-3 number, since 3×28823471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28823401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14411735 + 14411736.

It is an arithmetic number, because the mean of its divisors is an integer number (14411736).

Almost surely, 2^28823471 is an apocalyptic number.

28823471 is a deficient number, since it is larger than the sum of its proper divisors (1).

28823471 is an equidigital number, since it uses as much as digits as its factorization.

28823471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The square root of 28823471 is about 5368.7494819557. The cubic root of 28823471 is about 306.6070190912.

The spelling of 28823471 in words is "twenty-eight million, eight hundred twenty-three thousand, four hundred seventy-one".