28714369 has 4 divisors (see below), whose sum is σ = 28758996. Its totient is φ = 28669744.

The previous prime is 28714363. The next prime is 28714397. The reversal of 28714369 is 96341782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96341782 = 2 ⋅48170891.

It can be written as a sum of positive squares in 2 ways, for example, as 10112400 + 18601969 = 3180^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 28714369 - 2¹⁷ = 28583297 is a prime.

It is a super-2 number, since 2×28714369² = 1649029974136322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28714363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21334 + ... + 22639.

It is an arithmetic number, because the mean of its divisors is an integer number (7189749).

Almost surely, 2^28714369 is an apocalyptic number.

It is an amenable number.

28714369 is a deficient number, since it is larger than the sum of its proper divisors (44627).

28714369 is an equidigital number, since it uses as much as digits as its factorization.

28714369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44626.

The product of its digits is 72576, while the sum is 40.

The square root of 28714369 is about 5358.5790094017. The cubic root of 28714369 is about 306.2196757980.

The spelling of 28714369 in words is "twenty-eight million, seven hundred fourteen thousand, three hundred sixty-nine".