28662027 has 4 divisors (see below), whose sum is σ = 38216040. Its totient is φ = 19108016.

The previous prime is 28662019. The next prime is 28662031. The reversal of 28662027 is 72026682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28662027 - 2³ = 28662019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28662047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4777002 + ... + 4777007.

It is an arithmetic number, because the mean of its divisors is an integer number (9554010).

Almost surely, 2^28662027 is an apocalyptic number.

28662027 is a deficient number, since it is larger than the sum of its proper divisors (9554013).

28662027 is an equidigital number, since it uses as much as digits as its factorization.

28662027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554012.

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

The square root of 28662027 is about 5353.6928376589. The cubic root of 28662027 is about 306.0334984046.

The spelling of 28662027 in words is "twenty-eight million, six hundred sixty-two thousand, twenty-seven".