28874759 has 4 divisors (see below), whose sum is σ = 28902840. Its totient is φ = 28846680.

The previous prime is 28874743. The next prime is 28874761. The reversal of 28874759 is 95747882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95747882 = 2 ⋅47873941.

It is a cyclic number.

It is not a de Polignac number, because 28874759 - 2⁴ = 28874743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874719) 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, 12437 + ... + 14574.

It is an arithmetic number, because the mean of its divisors is an integer number (7225710).

Almost surely, 2^28874759 is an apocalyptic number.

28874759 is a deficient number, since it is larger than the sum of its proper divisors (28081).

28874759 is a wasteful number, since it uses less digits than its factorization.

28874759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28080.

The product of its digits is 1128960, while the sum is 50.

The square root of 28874759 is about 5373.5238903349. The cubic root of 28874759 is about 306.7887684592.

The spelling of 28874759 in words is "twenty-eight million, eight hundred seventy-four thousand, seven hundred fifty-nine".