28607283 has 16 divisors (see below), whose sum is σ = 42511360. Its totient is φ = 19012968.

The previous prime is 28607263. The next prime is 28607287. The reversal of 28607283 is 38270682.

It is a happy number.

28607283 is a `hidden beast` number, since 28 + 607 + 28 + 3 = 666.

It is not a de Polignac number, because 28607283 - 2⁵ = 28607251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28607287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8466 + ... + 11352.

It is an arithmetic number, because the mean of its divisors is an integer number (2656960).

Almost surely, 2^28607283 is an apocalyptic number.

28607283 is a deficient number, since it is larger than the sum of its proper divisors (13904077).

28607283 is a wasteful number, since it uses less digits than its factorization.

28607283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 28607283 is about 5348.5776613975. The cubic root of 28607283 is about 305.8385345770.

The spelling of 28607283 in words is "twenty-eight million, six hundred seven thousand, two hundred eighty-three".