28889682 has 8 divisors (see below), whose sum is σ = 57779376. Its totient is φ = 9629892.

The previous prime is 28889639. The next prime is 28889683. The reversal of 28889682 is 28698882.

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

28889682 is an admirable number.

It is a super-2 number, since 2×28889682² = 1669227452122248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28889683) 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, 2407468 + ... + 2407479.

It is an arithmetic number, because the mean of its divisors is an integer number (7222422).

Almost surely, 2^28889682 is an apocalyptic number.

28889682 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.

28889682 is a wasteful number, since it uses less digits than its factorization.

28889682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814952.

The product of its digits is 884736, while the sum is 51.

The square root of 28889682 is about 5374.9122783539. The cubic root of 28889682 is about 306.8416106933.

The spelling of 28889682 in words is "twenty-eight million, eight hundred eighty-nine thousand, six hundred eighty-two".