28627387 has 8 divisors (see below), whose sum is σ = 29941920. Its totient is φ = 27318720.

The previous prime is 28627373. The next prime is 28627393. The reversal of 28627387 is 78372682.

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 28627387 - 2⁷ = 28627259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28627327) 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, 10789 + ... + 13177.

It is an arithmetic number, because the mean of its divisors is an integer number (3742740).

Almost surely, 2^28627387 is an apocalyptic number.

28627387 is a deficient number, since it is larger than the sum of its proper divisors (1314533).

28627387 is a wasteful number, since it uses less digits than its factorization.

28627387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

The product of its digits is 225792, while the sum is 43.

The square root of 28627387 is about 5350.4567094782. The cubic root of 28627387 is about 305.9101613039.

The spelling of 28627387 in words is "twenty-eight million, six hundred twenty-seven thousand, three hundred eighty-seven".