28276063 has 4 divisors (see below), whose sum is σ = 28289088. Its totient is φ = 28263040.

The previous prime is 28276051. The next prime is 28276067. The reversal of 28276063 is 36067282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28276063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28276067) 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, 2383 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (7072272).

Almost surely, 2^28276063 is an apocalyptic number.

28276063 is a deficient number, since it is larger than the sum of its proper divisors (13025).

28276063 is a wasteful number, since it uses less digits than its factorization.

28276063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13024.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 28276063 is about 5317.5241419292. The cubic root of 28276063 is about 304.6535993823.

The spelling of 28276063 in words is "twenty-eight million, two hundred seventy-six thousand, sixty-three".