28336867 has 4 divisors (see below), whose sum is σ = 30516640. Its totient is φ = 26157096.

The previous prime is 28336859. The next prime is 28336873. The reversal of 28336867 is 76863382.

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 28336867 - 2³ = 28336859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28336837) 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, 1089867 + ... + 1089892.

It is an arithmetic number, because the mean of its divisors is an integer number (7629160).

Almost surely, 2^28336867 is an apocalyptic number.

28336867 is a deficient number, since it is larger than the sum of its proper divisors (2179773).

28336867 is a wasteful number, since it uses less digits than its factorization.

28336867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179772.

The product of its digits is 290304, while the sum is 43.

The square root of 28336867 is about 5323.2383940605. The cubic root of 28336867 is about 304.8718157038.

The spelling of 28336867 in words is "twenty-eight million, three hundred thirty-six thousand, eight hundred sixty-seven".