28607245 has 8 divisors (see below), whose sum is σ = 34502400. Its totient is φ = 22770000.

The previous prime is 28607237. The next prime is 28607251. The reversal of 28607245 is 54270682.

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

It is not a de Polignac number, because 28607245 - 2³ = 28607237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28607245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13381 + ... + 15370.

It is an arithmetic number, because the mean of its divisors is an integer number (4312800).

Almost surely, 2^28607245 is an apocalyptic number.

It is an amenable number.

28607245 is a deficient number, since it is larger than the sum of its proper divisors (5895155).

28607245 is a wasteful number, since it uses less digits than its factorization.

28607245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28955.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28607245 is about 5348.5741090500. The cubic root of 28607245 is about 305.8383991585.

The spelling of 28607245 in words is "twenty-eight million, six hundred seven thousand, two hundred forty-five".