28088683 has 4 divisors (see below), whose sum is σ = 32101360. Its totient is φ = 24076008.

The previous prime is 28088659. The next prime is 28088729. The reversal of 28088683 is 38688082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38688082 = 2 ⋅19344041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28088683 is a prime.

It is a super-2 number, since 2×28088683² = 1577948225348978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28088623) 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, 2006328 + ... + 2006341.

It is an arithmetic number, because the mean of its divisors is an integer number (8025340).

Almost surely, 2^28088683 is an apocalyptic number.

28088683 is a deficient number, since it is larger than the sum of its proper divisors (4012677).

28088683 is an equidigital number, since it uses as much as digits as its factorization.

28088683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012676.

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 28088683 is about 5299.8757532606. The cubic root of 28088683 is about 303.9791472019.

The spelling of 28088683 in words is "twenty-eight million, eighty-eight thousand, six hundred eighty-three".