28531083 has 40 divisors (see below), whose sum is σ = 47191248. Its totient is φ = 15278592.

The previous prime is 28531081. The next prime is 28531093. The reversal of 28531083 is 38013582.

It is a happy number.

It is not a de Polignac number, because 28531083 - 2¹ = 28531081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28531083.

It is not an unprimeable number, because it can be changed into a prime (28531081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 122335 + ... + 122567.

Almost surely, 2^28531083 is an apocalyptic number.

28531083 is a deficient number, since it is larger than the sum of its proper divisors (18660165).

28531083 is an equidigital number, since it uses as much as digits as its factorization.

28531083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28531083 is about 5341.4495223675. The cubic root of 28531083 is about 305.5667434263.

The spelling of 28531083 in words is "twenty-eight million, five hundred thirty-one thousand, eighty-three".