28602745 has 8 divisors (see below), whose sum is σ = 34400520. Its totient is φ = 22830720.

The previous prime is 28602719. The next prime is 28602757. The reversal of 28602745 is 54720682.

It can be written as a sum of positive squares in 4 ways, for example, as 183184 + 28419561 = 428^2 + 5331^2 .

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

It is not a de Polignac number, because 28602745 - 2⁷ = 28602617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28602745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900 + ... + 8509.

It is an arithmetic number, because the mean of its divisors is an integer number (4300065).

Almost surely, 2^28602745 is an apocalyptic number.

It is an amenable number.

28602745 is a deficient number, since it is larger than the sum of its proper divisors (5797775).

28602745 is a wasteful number, since it uses less digits than its factorization.

28602745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12875.

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

The square root of 28602745 is about 5348.1534196393. The cubic root of 28602745 is about 305.8223619044.

The spelling of 28602745 in words is "twenty-eight million, six hundred two thousand, seven hundred forty-five".