28562165 has 8 divisors (see below), whose sum is σ = 34363320. Its totient is φ = 22790592.

The previous prime is 28562161. The next prime is 28562179. The reversal of 28562165 is 56126582.

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 26122321 = 1562^2 + 5111^2 .

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 28562165 - 2² = 28562161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28562161) 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, 5210 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (4295415).

Almost surely, 2^28562165 is an apocalyptic number.

It is an amenable number.

28562165 is a deficient number, since it is larger than the sum of its proper divisors (5801155).

28562165 is a wasteful number, since it uses less digits than its factorization.

28562165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791.

The product of its digits is 28800, while the sum is 35.

The square root of 28562165 is about 5344.3582402380. The cubic root of 28562165 is about 305.6776654766.

The spelling of 28562165 in words is "twenty-eight million, five hundred sixty-two thousand, one hundred sixty-five".