28889683 has 2 divisors, whose sum is σ = 28889684. Its totient is φ = 28889682.

The previous prime is 28889639. The next prime is 28889689. The reversal of 28889683 is 38698882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28889683 - 2²¹ = 26792531 is a prime.

It is a super-2 number, since 2×28889683² = 1669227567680978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28889683.

It is not a weakly prime, because it can be changed into another prime (28889689) 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, 14444841 + 14444842.

It is an arithmetic number, because the mean of its divisors is an integer number (14444842).

Almost surely, 2^28889683 is an apocalyptic number.

28889683 is a deficient number, since it is larger than the sum of its proper divisors (1).

28889683 is an equidigital number, since it uses as much as digits as its factorization.

28889683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 52.

The square root of 28889683 is about 5374.9123713787. The cubic root of 28889683 is about 306.8416142336.

The spelling of 28889683 in words is "twenty-eight million, eight hundred eighty-nine thousand, six hundred eighty-three".