28301066 has 4 divisors (see below), whose sum is σ = 42451602. Its totient is φ = 14150532.

The previous prime is 28301059. The next prime is 28301081. The reversal of 28301066 is 66010382.

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

It can be written as a sum of positive squares in only one way, i.e., 25290841 + 3010225 = 5029^2 + 1735^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7075265 + ... + 7075268.

Almost surely, 2^28301066 is an apocalyptic number.

28301066 is a deficient number, since it is larger than the sum of its proper divisors (14150536).

28301066 is a wasteful number, since it uses less digits than its factorization.

28301066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150535.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 28301066 is about 5319.8746225828. The cubic root of 28301066 is about 304.7433691860.

The spelling of 28301066 in words is "twenty-eight million, three hundred one thousand, sixty-six".