28876434 has 8 divisors (see below), whose sum is σ = 57752880. Its totient is φ = 9625476.

The previous prime is 28876427. The next prime is 28876451. The reversal of 28876434 is 43467882.

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

28876434 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 2406364 + ... + 2406375.

It is an arithmetic number, because the mean of its divisors is an integer number (7219110).

Almost surely, 2^28876434 is an apocalyptic number.

28876434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28876434 is a wasteful number, since it uses less digits than its factorization.

28876434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812744.

The product of its digits is 258048, while the sum is 42.

The square root of 28876434 is about 5373.6797448304. The cubic root of 28876434 is about 306.7947005290.

The spelling of 28876434 in words is "twenty-eight million, eight hundred seventy-six thousand, four hundred thirty-four".