28367312 has 20 divisors (see below), whose sum is σ = 55135236. Its totient is φ = 14138880.

The previous prime is 28367309. The next prime is 28367321. The reversal of 28367312 is 21376382.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14409616 + 13957696 = 3796^2 + 3736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762 + ... + 8022.

Almost surely, 2^28367312 is an apocalyptic number.

It is an amenable number.

28367312 is a deficient number, since it is larger than the sum of its proper divisors (26767924).

28367312 is a wasteful number, since it uses less digits than its factorization.

28367312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5600 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 28367312 is about 5326.0972578427. The cubic root of 28367312 is about 304.9809609185.

The spelling of 28367312 in words is "twenty-eight million, three hundred sixty-seven thousand, three hundred twelve".