28527877 has 8 divisors (see below), whose sum is σ = 33361856. Its totient is φ = 23883552.

The previous prime is 28527859. The next prime is 28527881. The reversal of 28527877 is 77872582.

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

It is not a de Polignac number, because 28527877 - 2⁷ = 28527749 is a prime.

It is a super-2 number, since 2×28527877² = 1627679532254258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28527817) 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, 47088 + ... + 47689.

It is an arithmetic number, because the mean of its divisors is an integer number (4170232).

Almost surely, 2^28527877 is an apocalyptic number.

It is an amenable number.

28527877 is a deficient number, since it is larger than the sum of its proper divisors (4833979).

28527877 is an equidigital number, since it uses as much as digits as its factorization.

28527877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94827.

The product of its digits is 439040, while the sum is 46.

The square root of 28527877 is about 5341.1494081330. The cubic root of 28527877 is about 305.5552976208. Note that the first 3 decimals are identical.

The spelling of 28527877 in words is "twenty-eight million, five hundred twenty-seven thousand, eight hundred seventy-seven".