28316871 has 40 divisors (see below), whose sum is σ = 46992528. Its totient is φ = 16848000.

The previous prime is 28316851. The next prime is 28316903. The reversal of 28316871 is 17861382.

28316871 = 1124² + 1125² + ... + 1145².

It is not a de Polignac number, because 28316871 - 2⁶ = 28316807 is a prime.

It is a super-3 number, since 3×28316871³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54091 + ... + 54611.

Almost surely, 2^28316871 is an apocalyptic number.

28316871 is a deficient number, since it is larger than the sum of its proper divisors (18675657).

28316871 is a wasteful number, since it uses less digits than its factorization.

28316871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 596 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 28316871 is about 5321.3598825864. The cubic root of 28316871 is about 304.8000875751.

The spelling of 28316871 in words is "twenty-eight million, three hundred sixteen thousand, eight hundred seventy-one".