28295027 has 4 divisors (see below), whose sum is σ = 28569840. Its totient is φ = 28020216.

The previous prime is 28295023. The next prime is 28295041. The reversal of 28295027 is 72059282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72059282 = 2 ⋅36029641.

It is a cyclic number.

It is not a de Polignac number, because 28295027 - 2² = 28295023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28295023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137252 + ... + 137457.

It is an arithmetic number, because the mean of its divisors is an integer number (7142460).

Almost surely, 2^28295027 is an apocalyptic number.

28295027 is a deficient number, since it is larger than the sum of its proper divisors (274813).

28295027 is a wasteful number, since it uses less digits than its factorization.

28295027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274812.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28295027 is about 5319.3070037365. The cubic root of 28295027 is about 304.7216918385.

The spelling of 28295027 in words is "twenty-eight million, two hundred ninety-five thousand, twenty-seven".