28608194 has 4 divisors (see below), whose sum is σ = 42912294. Its totient is φ = 14304096.

The previous prime is 28608193. The next prime is 28608199. The reversal of 28608194 is 49180682.

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., 26884225 + 1723969 = 5185^2 + 1313^2 .

It is not an unprimeable number, because it can be changed into a prime (28608193) by changing a digit.

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 as a sum of consecutive naturals, namely, 7152047 + ... + 7152050.

Almost surely, 2^28608194 is an apocalyptic number.

28608194 is a deficient number, since it is larger than the sum of its proper divisors (14304100).

28608194 is a wasteful number, since it uses less digits than its factorization.

28608194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304099.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28608194 is about 5348.6628235476. The cubic root of 28608194 is about 305.8417810224.

The spelling of 28608194 in words is "twenty-eight million, six hundred eight thousand, one hundred ninety-four".