28806359 has 4 divisors (see below), whose sum is σ = 28918704. Its totient is φ = 28694016.

The previous prime is 28806293. The next prime is 28806361. The reversal of 28806359 is 95360882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95360882 = 2 ⋅47680441.

It is a cyclic number.

It is not a de Polignac number, because 28806359 - 2⁸ = 28806103 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 (28806389) 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, 55787 + ... + 56300.

It is an arithmetic number, because the mean of its divisors is an integer number (7229676).

Almost surely, 2^28806359 is an apocalyptic number.

28806359 is a deficient number, since it is larger than the sum of its proper divisors (112345).

28806359 is a wasteful number, since it uses less digits than its factorization.

28806359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112344.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28806359 is about 5367.1555781438. The cubic root of 28806359 is about 306.5463313050.

The spelling of 28806359 in words is "twenty-eight million, eight hundred six thousand, three hundred fifty-nine".