28082619 has 10 divisors (see below), whose sum is σ = 41950700. Its totient is φ = 18721692.

The previous prime is 28082617. The next prime is 28082653. The reversal of 28082619 is 91628082.

It is not a de Polignac number, because 28082619 - 2¹ = 28082617 is a prime.

It is a super-2 number, since 2×28082619² = 1577266979798322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28082611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 173269 + ... + 173430.

It is an arithmetic number, because the mean of its divisors is an integer number (4195070).

Almost surely, 2^28082619 is an apocalyptic number.

28082619 is a deficient number, since it is larger than the sum of its proper divisors (13868081).

28082619 is an equidigital number, since it uses as much as digits as its factorization.

28082619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346711 (or 346702 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 28082619 is about 5299.3036334975. The cubic root of 28082619 is about 303.9572705121.

The spelling of 28082619 in words is "twenty-eight million, eighty-two thousand, six hundred nineteen".