28703027 has 4 divisors (see below), whose sum is σ = 28726296. Its totient is φ = 28679760.

The previous prime is 28702967. The next prime is 28703033. The reversal of 28703027 is 72030782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72030782 = 2 ⋅36015391.

It is a cyclic number.

It is not a de Polignac number, because 28703027 - 2⁸ = 28702771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28703627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9674 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (7181574).

Almost surely, 2^28703027 is an apocalyptic number.

28703027 is a deficient number, since it is larger than the sum of its proper divisors (23269).

28703027 is a wasteful number, since it uses less digits than its factorization.

28703027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23268.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 28703027 is about 5357.5206019203. The cubic root of 28703027 is about 306.1793521891.

The spelling of 28703027 in words is "twenty-eight million, seven hundred three thousand, twenty-seven".