28273763 has 8 divisors (see below), whose sum is σ = 32405760. Its totient is φ = 24165000.

The previous prime is 28273727. The next prime is 28273769. The reversal of 28273763 is 36737282.

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 28273763 - 2⁶ = 28273699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28273769) 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, 3113 + ... + 8138.

It is an arithmetic number, because the mean of its divisors is an integer number (4050720).

Almost surely, 2^28273763 is an apocalyptic number.

28273763 is a deficient number, since it is larger than the sum of its proper divisors (4131997).

28273763 is a wasteful number, since it uses less digits than its factorization.

28273763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617.

The product of its digits is 84672, while the sum is 38.

The square root of 28273763 is about 5317.3078714703. The cubic root of 28273763 is about 304.6453388938.

The spelling of 28273763 in words is "twenty-eight million, two hundred seventy-three thousand, seven hundred sixty-three".