28729034 has 4 divisors (see below), whose sum is σ = 43093554. Its totient is φ = 14364516.

The previous prime is 28729009. The next prime is 28729049. The reversal of 28729034 is 43092782.

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., 26553409 + 2175625 = 5153^2 + 1475^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28728985 and 28729003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7182257 + ... + 7182260.

Almost surely, 2^28729034 is an apocalyptic number.

28729034 is a deficient number, since it is larger than the sum of its proper divisors (14364520).

28729034 is a wasteful number, since it uses less digits than its factorization.

28729034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364519.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 28729034 is about 5359.9472012325. The cubic root of 28729034 is about 306.2717977543.

The spelling of 28729034 in words is "twenty-eight million, seven hundred twenty-nine thousand, thirty-four".