28827317 has 8 divisors (see below), whose sum is σ = 29207256. Its totient is φ = 28449792.

The previous prime is 28827307. The next prime is 28827347. The reversal of 28827317 is 71372882.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 28826161 = 34^2 + 5369^2 .

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 28827317 - 2⁸ = 28827061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28827307) 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, 37703 + ... + 38459.

It is an arithmetic number, because the mean of its divisors is an integer number (3650907).

Almost surely, 2^28827317 is an apocalyptic number.

It is an amenable number.

28827317 is a deficient number, since it is larger than the sum of its proper divisors (379939).

28827317 is a wasteful number, since it uses less digits than its factorization.

28827317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207.

The product of its digits is 37632, while the sum is 38.

The square root of 28827317 is about 5369.1076539775. The cubic root of 28827317 is about 306.6206556417.

The spelling of 28827317 in words is "twenty-eight million, eight hundred twenty-seven thousand, three hundred seventeen".