28417027 has 4 divisors (see below), whose sum is σ = 29912680. Its totient is φ = 26921376.

The previous prime is 28417019. The next prime is 28417031. The reversal of 28417027 is 72071482.

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 28417027 - 2³ = 28417019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28417027.

It is not an unprimeable number, because it can be changed into a prime (28417007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747798 + ... + 747835.

It is an arithmetic number, because the mean of its divisors is an integer number (7478170).

Almost surely, 2^28417027 is an apocalyptic number.

28417027 is a deficient number, since it is larger than the sum of its proper divisors (1495653).

28417027 is a wasteful number, since it uses less digits than its factorization.

28417027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495652.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 28417027 is about 5330.7623282229. The cubic root of 28417027 is about 305.1590212584.

The spelling of 28417027 in words is "twenty-eight million, four hundred seventeen thousand, twenty-seven".