28959883 has 8 divisors (see below), whose sum is σ = 29343600. Its totient is φ = 28578528.

The previous prime is 28959881. The next prime is 28959907. The reversal of 28959883 is 38895982.

It is a happy number.

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 28959883 - 2¹ = 28959881 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 28959883.

It is not an unprimeable number, because it can be changed into a prime (28959881) 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, 42060 + ... + 42742.

It is an arithmetic number, because the mean of its divisors is an integer number (3667950).

Almost surely, 2^28959883 is an apocalyptic number.

28959883 is the 2877-th centered heptagonal number.

28959883 is a deficient number, since it is larger than the sum of its proper divisors (383717).

28959883 is a wasteful number, since it uses less digits than its factorization.

28959883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its digits is 1244160, while the sum is 52.

The square root of 28959883 is about 5381.4387481416. The cubic root of 28959883 is about 307.0899480729.

The spelling of 28959883 in words is "twenty-eight million, nine hundred fifty-nine thousand, eight hundred eighty-three".