28857027 has 8 divisors (see below), whose sum is σ = 39018240. Its totient is φ = 18966920.

The previous prime is 28856983. The next prime is 28857047. The reversal of 28857027 is 72075882.

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

It is a cyclic number.

It is not a de Polignac number, because 28857027 - 2²² = 24662723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28857047) 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, 67527 + ... + 67952.

It is an arithmetic number, because the mean of its divisors is an integer number (4877280).

Almost surely, 2^28857027 is an apocalyptic number.

28857027 is a deficient number, since it is larger than the sum of its proper divisors (10161213).

28857027 is a wasteful number, since it uses less digits than its factorization.

28857027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135553.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 28857027 is about 5371.8736954623. The cubic root of 28857027 is about 306.7259559017.

The spelling of 28857027 in words is "twenty-eight million, eight hundred fifty-seven thousand, twenty-seven".