28384508 has 6 divisors (see below), whose sum is σ = 49672896. Its totient is φ = 14192252.

The previous prime is 28384493. The next prime is 28384523. The reversal of 28384508 is 80548382.

It is an interprime number because it is at equal distance from previous prime (28384493) and next prime (28384523).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3548060 + ... + 3548067.

It is an arithmetic number, because the mean of its divisors is an integer number (8278816).

Almost surely, 2^28384508 is an apocalyptic number.

It is an amenable number.

28384508 is a deficient number, since it is larger than the sum of its proper divisors (21288388).

28384508 is a wasteful number, since it uses less digits than its factorization.

28384508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7096131 (or 7096129 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 28384508 is about 5327.7113285162. The cubic root of 28384508 is about 305.0425740086.

The spelling of 28384508 in words is "twenty-eight million, three hundred eighty-four thousand, five hundred eight".