28317324 has 48 divisors (see below), whose sum is σ = 78801408. Its totient is φ = 7738368.

The previous prime is 28317299. The next prime is 28317337. The reversal of 28317324 is 42371382.

It is a junction number, because it is equal to n+sod(n) for n = 28317291 and 28317300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5397 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (1641696).

Almost surely, 2^28317324 is an apocalyptic number.

It is an amenable number.

28317324 is an abundant number, since it is smaller than the sum of its proper divisors (50484084).

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

28317324 is a wasteful number, since it uses less digits than its factorization.

28317324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14694 (or 14692 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 28317324 is about 5321.4024467240. The cubic root of 28317324 is about 304.8017129160.

The spelling of 28317324 in words is "twenty-eight million, three hundred seventeen thousand, three hundred twenty-four".