28290327 has 8 divisors (see below), whose sum is σ = 40622064. Its totient is φ = 17409408.

The previous prime is 28290319. The next prime is 28290331. The reversal of 28290327 is 72309282.

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

It is not a de Polignac number, because 28290327 - 2³ = 28290319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28290307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362658 + ... + 362735.

It is an arithmetic number, because the mean of its divisors is an integer number (5077758).

Almost surely, 2^28290327 is an apocalyptic number.

28290327 is a deficient number, since it is larger than the sum of its proper divisors (12331737).

28290327 is a wasteful number, since it uses less digits than its factorization.

28290327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725409.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28290327 is about 5318.8651985174. The cubic root of 28290327 is about 304.7048187762.

It can be divided in two parts, 282 and 90327, that added together give a palindrome (90609).

The spelling of 28290327 in words is "twenty-eight million, two hundred ninety thousand, three hundred twenty-seven".