28835123 has 4 divisors (see below), whose sum is σ = 30088848. Its totient is φ = 27581400.

The previous prime is 28835119. The next prime is 28835137. The reversal of 28835123 is 32153882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28835123 - 2² = 28835119 is a prime.

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 28835123.

It is not an unprimeable number, because it can be changed into a prime (28835923) 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, 626828 + ... + 626873.

It is an arithmetic number, because the mean of its divisors is an integer number (7522212).

Almost surely, 2^28835123 is an apocalyptic number.

28835123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28835123 is a deficient number, since it is larger than the sum of its proper divisors (1253725).

28835123 is a wasteful number, since it uses less digits than its factorization.

28835123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253724.

The product of its digits is 11520, while the sum is 32.

The square root of 28835123 is about 5369.8345412126. The cubic root of 28835123 is about 306.6483292175.

The spelling of 28835123 in words is "twenty-eight million, eight hundred thirty-five thousand, one hundred twenty-three".