28082519 has 4 divisors (see below), whose sum is σ = 28841544. Its totient is φ = 27323496.

The previous prime is 28082503. The next prime is 28082543. The reversal of 28082519 is 91528082.

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

It is a cyclic number.

It is not a de Polignac number, because 28082519 - 2⁴ = 28082503 is a prime.

It is a super-2 number, since 2×28082519² = 1577255746770722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082599) 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, 379457 + ... + 379530.

It is an arithmetic number, because the mean of its divisors is an integer number (7210386).

Almost surely, 2^28082519 is an apocalyptic number.

28082519 is a deficient number, since it is larger than the sum of its proper divisors (759025).

28082519 is an equidigital number, since it uses as much as digits as its factorization.

28082519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759024.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28082519 is about 5299.2941982872. The cubic root of 28082519 is about 303.9569097224.

The spelling of 28082519 in words is "twenty-eight million, eighty-two thousand, five hundred nineteen".