28329194 has 4 divisors (see below), whose sum is σ = 42493794. Its totient is φ = 14164596.

The previous prime is 28329181. The next prime is 28329229. The reversal of 28329194 is 49192382.

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., 17682025 + 10647169 = 4205^2 + 3263^2 .

It is an unprimeable number.

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, 7082297 + ... + 7082300.

Almost surely, 2^28329194 is an apocalyptic number.

28329194 is a deficient number, since it is larger than the sum of its proper divisors (14164600).

28329194 is a wasteful number, since it uses less digits than its factorization.

28329194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14164599.

The product of its digits is 31104, while the sum is 38.

The square root of 28329194 is about 5322.5176373592. The cubic root of 28329194 is about 304.8442956935.

The spelling of 28329194 in words is "twenty-eight million, three hundred twenty-nine thousand, one hundred ninety-four".