28353387 has 8 divisors (see below), whose sum is σ = 39108240. Its totient is φ = 18250400.

The previous prime is 28353373. The next prime is 28353397. The reversal of 28353387 is 78335382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28353387 - 2⁶ = 28353323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28353397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162864 + ... + 163037.

It is an arithmetic number, because the mean of its divisors is an integer number (4888530).

Almost surely, 2^28353387 is an apocalyptic number.

28353387 is a deficient number, since it is larger than the sum of its proper divisors (10754853).

28353387 is a wasteful number, since it uses less digits than its factorization.

28353387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325933.

The product of its digits is 120960, while the sum is 39.

The square root of 28353387 is about 5324.7898550084. The cubic root of 28353387 is about 304.9310495396.

The spelling of 28353387 in words is "twenty-eight million, three hundred fifty-three thousand, three hundred eighty-seven".