28315827 has 6 divisors (see below), whose sum is σ = 40900652. Its totient is φ = 18877212.

The previous prime is 28315817. The next prime is 28315853. The reversal of 28315827 is 72851382.

It is not a de Polignac number, because 28315827 - 2¹⁴ = 28299443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28315791 and 28315800.

It is not an unprimeable number, because it can be changed into a prime (28315817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1573093 + ... + 1573110.

Almost surely, 2^28315827 is an apocalyptic number.

28315827 is a deficient number, since it is larger than the sum of its proper divisors (12584825).

28315827 is a wasteful number, since it uses less digits than its factorization.

28315827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146209 (or 3146206 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 28315827 is about 5321.2617864563. The cubic root of 28315827 is about 304.7963416904.

It can be divided in two parts, 283 and 15827, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 28315827 in words is "twenty-eight million, three hundred fifteen thousand, eight hundred twenty-seven".