28758027 has 12 divisors (see below), whose sum is σ = 40085864. Its totient is φ = 18337440.

The previous prime is 28758011. The next prime is 28758029. The reversal of 28758027 is 72085782.

It is not a de Polignac number, because 28758027 - 2⁴ = 28758011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28758029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7474 + ... + 10647.

Almost surely, 2^28758027 is an apocalyptic number.

28758027 is a deficient number, since it is larger than the sum of its proper divisors (11327837).

28758027 is a wasteful number, since it uses less digits than its factorization.

28758027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18170 (or 18147 counting only the distinct ones).

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

The square root of 28758027 is about 5362.6511167519. The cubic root of 28758027 is about 306.3747917359.

The spelling of 28758027 in words is "twenty-eight million, seven hundred fifty-eight thousand, twenty-seven".