28468471 has 2 divisors, whose sum is σ = 28468472. Its totient is φ = 28468470.

The previous prime is 28468469. The next prime is 28468493. The reversal of 28468471 is 17486482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28468471 - 2¹ = 28468469 is a prime.

It is a super-3 number, since 3×28468471³ (a number of 23 digits) contains 333 as substring.

Together with 28468469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28468171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14234235 + 14234236.

It is an arithmetic number, because the mean of its divisors is an integer number (14234236).

Almost surely, 2^28468471 is an apocalyptic number.

28468471 is a deficient number, since it is larger than the sum of its proper divisors (1).

28468471 is an equidigital number, since it uses as much as digits as its factorization.

28468471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 40.

The square root of 28468471 is about 5335.5853474572. The cubic root of 28468471 is about 305.3430557227.

The spelling of 28468471 in words is "twenty-eight million, four hundred sixty-eight thousand, four hundred seventy-one".