28315336 has 64 divisors (see below), whose sum is σ = 65664000. Its totient is φ = 11402496.

The previous prime is 28315327. The next prime is 28315337. The reversal of 28315336 is 63351382.

It is a junction number, because it is equal to n+sod(n) for n = 28315298 and 28315307.

It is not an unprimeable number, because it can be changed into a prime (28315337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46345 + ... + 46951.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^28315336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28315336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32832000).

28315336 is an abundant number, since it is smaller than the sum of its proper divisors (37348664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28315336 is a wasteful number, since it uses less digits than its factorization.

28315336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 633 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 28315336 is about 5321.2156505821. The cubic root of 28315336 is about 304.7945799446.

The spelling of 28315336 in words is "twenty-eight million, three hundred fifteen thousand, three hundred thirty-six".