28774883 has 4 divisors (see below), whose sum is σ = 28895520. Its totient is φ = 28654248.

The previous prime is 28774877. The next prime is 28774903. The reversal of 28774883 is 38847782.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28774883 - 2⁶ = 28774819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28704883) 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, 59960 + ... + 60437.

It is an arithmetic number, because the mean of its divisors is an integer number (7223880).

Almost surely, 2^28774883 is an apocalyptic number.

28774883 is a deficient number, since it is larger than the sum of its proper divisors (120637).

28774883 is a wasteful number, since it uses less digits than its factorization.

28774883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120636.

The product of its digits is 602112, while the sum is 47.

The square root of 28774883 is about 5364.2224972497. Note that the first 3 decimals coincide. The cubic root of 28774883 is about 306.4346387349.

The spelling of 28774883 in words is "twenty-eight million, seven hundred seventy-four thousand, eight hundred eighty-three".