28047182 has 8 divisors (see below), whose sum is σ = 42103152. Its totient is φ = 14012800.

The previous prime is 28047179. The next prime is 28047197. The reversal of 28047182 is 28174082.

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

It is a super-2 number, since 2×28047182² = 1573288836282248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619 + ... + 7662.

It is an arithmetic number, because the mean of its divisors is an integer number (5262894).

Almost surely, 2^28047182 is an apocalyptic number.

28047182 is a deficient number, since it is larger than the sum of its proper divisors (14055970).

28047182 is a wasteful number, since it uses less digits than its factorization.

28047182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 28047182 is about 5295.9590255213. The cubic root of 28047182 is about 303.8293637845.

The spelling of 28047182 in words is "twenty-eight million, forty-seven thousand, one hundred eighty-two".