28287352 has 32 divisors (see below), whose sum is σ = 56250000. Its totient is φ = 13298688.

The previous prime is 28287341. The next prime is 28287359. The reversal of 28287352 is 25378282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28287359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22024 + ... + 23272.

Almost surely, 2^28287352 is an apocalyptic number.

It is an amenable number.

28287352 is a deficient number, since it is larger than the sum of its proper divisors (27962648).

28287352 is a wasteful number, since it uses less digits than its factorization.

28287352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1419 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 28287352 is about 5318.5855262466. The cubic root of 28287352 is about 304.6941375210.

The spelling of 28287352 in words is "twenty-eight million, two hundred eighty-seven thousand, three hundred fifty-two".