28112582 has 8 divisors (see below), whose sum is σ = 42860352. Its totient is φ = 13825800.

The previous prime is 28112569. The next prime is 28112587. The reversal of 28112582 is 28521182.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112587) 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, 115094 + ... + 115337.

It is an arithmetic number, because the mean of its divisors is an integer number (5357544).

Almost surely, 2^28112582 is an apocalyptic number.

28112582 is a deficient number, since it is larger than the sum of its proper divisors (14747770).

28112582 is a wasteful number, since it uses less digits than its factorization.

28112582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230494.

The product of its digits is 2560, while the sum is 29.

The square root of 28112582 is about 5302.1299493694. The cubic root of 28112582 is about 304.0653353916.

The spelling of 28112582 in words is "twenty-eight million, one hundred twelve thousand, five hundred eighty-two".