28359638 has 8 divisors (see below), whose sum is σ = 45041832. Its totient is φ = 13345696.

The previous prime is 28359631. The next prime is 28359671. The reversal of 28359638 is 83695382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28359631) 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, 417020 + ... + 417087.

It is an arithmetic number, because the mean of its divisors is an integer number (5630229).

Almost surely, 2^28359638 is an apocalyptic number.

28359638 is a deficient number, since it is larger than the sum of its proper divisors (16682194).

28359638 is a wasteful number, since it uses less digits than its factorization.

28359638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834126.

The product of its digits is 311040, while the sum is 44.

The square root of 28359638 is about 5325.3767941809. The cubic root of 28359638 is about 304.9534570205.

The spelling of 28359638 in words is "twenty-eight million, three hundred fifty-nine thousand, six hundred thirty-eight".