28074859 has 4 divisors (see below), whose sum is σ = 28112704. Its totient is φ = 28037016.

The previous prime is 28074857. The next prime is 28074863. The reversal of 28074859 is 95847082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95847082 = 2 ⋅47923541.

It is a cyclic number.

It is not a de Polignac number, because 28074859 - 2¹ = 28074857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28074853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17787 + ... + 19300.

It is an arithmetic number, because the mean of its divisors is an integer number (7028176).

Almost surely, 2^28074859 is an apocalyptic number.

28074859 is a deficient number, since it is larger than the sum of its proper divisors (37845).

28074859 is an equidigital number, since it uses as much as digits as its factorization.

28074859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37844.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 28074859 is about 5298.5714112391. The cubic root of 28074859 is about 303.9292706817.

The spelling of 28074859 in words is "twenty-eight million, seventy-four thousand, eight hundred fifty-nine".