28633276 has 24 divisors (see below), whose sum is σ = 57470336. Its totient is φ = 12227760.

The previous prime is 28633261. The next prime is 28633277. The reversal of 28633276 is 67233682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28633277) 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, 6931 + ... + 10261.

Almost surely, 2^28633276 is an apocalyptic number.

It is an amenable number.

28633276 is an abundant number, since it is smaller than the sum of its proper divisors (28837060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28633276 is a wasteful number, since it uses less digits than its factorization.

28633276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649 (or 3647 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 28633276 is about 5351.0070080313. The cubic root of 28633276 is about 305.9311363400.

The spelling of 28633276 in words is "twenty-eight million, six hundred thirty-three thousand, two hundred seventy-six".