28314396 has 72 divisors (see below), whose sum is σ = 78833664. Its totient is φ = 8497440.

The previous prime is 28314383. The next prime is 28314409. The reversal of 28314396 is 69341382.

It is an interprime number because it is at equal distance from previous prime (28314383) and next prime (28314409).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28314396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50011 + ... + 50573.

It is an arithmetic number, because the mean of its divisors is an integer number (1094912).

Almost surely, 2^28314396 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 28314396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39416832).

28314396 is an abundant number, since it is smaller than the sum of its proper divisors (50519268).

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

28314396 is a wasteful number, since it uses less digits than its factorization.

28314396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 706 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 28314396 is about 5321.1273241673. The cubic root of 28314396 is about 304.7912070954.

It can be divided in two parts, 2831 and 4396, that added together give a palindrome (7227).

The spelling of 28314396 in words is "twenty-eight million, three hundred fourteen thousand, three hundred ninety-six".