28382584 has 8 divisors (see below), whose sum is σ = 53217360. Its totient is φ = 14191288.

The previous prime is 28382581. The next prime is 28382587. The reversal of 28382584 is 48528382.

It is an interprime number because it is at equal distance from previous prime (28382581) and next prime (28382587).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28382581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773904 + ... + 1773919.

It is an arithmetic number, because the mean of its divisors is an integer number (6652170).

Almost surely, 2^28382584 is an apocalyptic number.

It is an amenable number.

28382584 is a deficient number, since it is larger than the sum of its proper divisors (24834776).

28382584 is a wasteful number, since it uses less digits than its factorization.

28382584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547829 (or 3547825 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 28382584 is about 5327.5307601177. The cubic root of 28382584 is about 305.0356815731.

The spelling of 28382584 in words is "twenty-eight million, three hundred eighty-two thousand, five hundred eighty-four".