28873115 has 8 divisors (see below), whose sum is σ = 34778160. Its totient is φ = 23011552.

The previous prime is 28873057. The next prime is 28873139. The reversal of 28873115 is 51137882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28873115 - 2¹⁶ = 28807579 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9389 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (4347270).

Almost surely, 2^28873115 is an apocalyptic number.

28873115 is a deficient number, since it is larger than the sum of its proper divisors (5905045).

28873115 is a wasteful number, since it uses less digits than its factorization.

28873115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21741.

The product of its digits is 13440, while the sum is 35.

The square root of 28873115 is about 5373.3709159149. The cubic root of 28873115 is about 306.7829459540.

The spelling of 28873115 in words is "twenty-eight million, eight hundred seventy-three thousand, one hundred fifteen".