28719134 has 8 divisors (see below), whose sum is σ = 44951760. Its totient is φ = 13735216.

The previous prime is 28719109. The next prime is 28719151. The reversal of 28719134 is 43191782.

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

It is a junction number, because it is equal to n+sod(n) for n = 28719094 and 28719103.

It is a congruent 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, 312119 + ... + 312210.

It is an arithmetic number, because the mean of its divisors is an integer number (5618970).

Almost surely, 2^28719134 is an apocalyptic number.

28719134 is a deficient number, since it is larger than the sum of its proper divisors (16232626).

28719134 is a wasteful number, since it uses less digits than its factorization.

28719134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624354.

The product of its digits is 12096, while the sum is 35.

The square root of 28719134 is about 5359.0236050982. The cubic root of 28719134 is about 306.2366133813.

The spelling of 28719134 in words is "twenty-eight million, seven hundred nineteen thousand, one hundred thirty-four".