28689119 has 8 divisors (see below), whose sum is σ = 30054240. Its totient is φ = 27333856.

The previous prime is 28689113. The next prime is 28689137. The reversal of 28689119 is 91198682.

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

It is a cyclic number.

It is not a de Polignac number, because 28689119 - 2¹⁶ = 28623583 is a prime.

It is a super-2 number, since 2×28689119² = 1646131097992322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28689119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28689113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (3756780).

Almost surely, 2^28689119 is an apocalyptic number.

28689119 is a deficient number, since it is larger than the sum of its proper divisors (1365121).

28689119 is a wasteful number, since it uses less digits than its factorization.

28689119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929.

The product of its digits is 62208, while the sum is 44.

The square root of 28689119 is about 5356.2224561719. Note that the first 3 decimals coincide. The cubic root of 28689119 is about 306.1298913151.

The spelling of 28689119 in words is "twenty-eight million, six hundred eighty-nine thousand, one hundred nineteen".