28767883 has 4 divisors (see below), whose sum is σ = 29114568. Its totient is φ = 28421200.

The previous prime is 28767839. The next prime is 28767911. The reversal of 28767883 is 38876782.

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 28767883 - 2⁹ = 28767371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28767983) 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, 173218 + ... + 173383.

It is an arithmetic number, because the mean of its divisors is an integer number (7278642).

Almost surely, 2^28767883 is an apocalyptic number.

28767883 is a deficient number, since it is larger than the sum of its proper divisors (346685).

28767883 is an equidigital number, since it uses as much as digits as its factorization.

28767883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346684.

The product of its digits is 903168, while the sum is 49.

The square root of 28767883 is about 5363.5699864922. The cubic root of 28767883 is about 306.4097881684.

The spelling of 28767883 in words is "twenty-eight million, seven hundred sixty-seven thousand, eight hundred eighty-three".