28976229 has 12 divisors (see below), whose sum is σ = 41901600. Its totient is φ = 19295784.

The previous prime is 28976203. The next prime is 28976237. The reversal of 28976229 is 92267982.

It is not a de Polignac number, because 28976229 - 2⁹ = 28975717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28976239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13192 + ... + 15230.

It is an arithmetic number, because the mean of its divisors is an integer number (3491800).

Almost surely, 2^28976229 is an apocalyptic number.

It is an amenable number.

28976229 is a deficient number, since it is larger than the sum of its proper divisors (12925371).

28976229 is a wasteful number, since it uses less digits than its factorization.

28976229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624 (or 3621 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28976229 is about 5382.9572727266. The cubic root of 28976229 is about 307.1477147446.

The spelling of 28976229 in words is "twenty-eight million, nine hundred seventy-six thousand, two hundred twenty-nine".