28565102 has 4 divisors (see below), whose sum is σ = 42847656. Its totient is φ = 14282550.

The previous prime is 28565099. The next prime is 28565107. The reversal of 28565102 is 20156582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28565107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7141274 + ... + 7141277.

It is an arithmetic number, because the mean of its divisors is an integer number (10711914).

Almost surely, 2^28565102 is an apocalyptic number.

28565102 is a deficient number, since it is larger than the sum of its proper divisors (14282554).

28565102 is a wasteful number, since it uses less digits than its factorization.

28565102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282553.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 28565102 is about 5344.6330089165. The cubic root of 28565102 is about 305.6881425598.

The spelling of 28565102 in words is "twenty-eight million, five hundred sixty-five thousand, one hundred two".