28146327 has 16 divisors (see below), whose sum is σ = 42353280. Its totient is φ = 16469600.

The previous prime is 28146323. The next prime is 28146329. The reversal of 28146327 is 72364182.

It is a cyclic number.

It is not a de Polignac number, because 28146327 - 2² = 28146323 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28146323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13749 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (2647080).

Almost surely, 2^28146327 is an apocalyptic number.

28146327 is a deficient number, since it is larger than the sum of its proper divisors (14206953).

28146327 is a wasteful number, since it uses less digits than its factorization.

28146327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29454.

The product of its digits is 16128, while the sum is 33.

The square root of 28146327 is about 5305.3112067060. The cubic root of 28146327 is about 304.1869485777.

The spelling of 28146327 in words is "twenty-eight million, one hundred forty-six thousand, three hundred twenty-seven".