28903029 has 8 divisors (see below), whose sum is σ = 38592480. Its totient is φ = 19241136.

The previous prime is 28903001. The next prime is 28903033. The reversal of 28903029 is 92030982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28903029 - 2¹¹ = 28900981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28903079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4302 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (4824060).

Almost surely, 2^28903029 is an apocalyptic number.

It is an amenable number.

28903029 is a deficient number, since it is larger than the sum of its proper divisors (9689451).

28903029 is a wasteful number, since it uses less digits than its factorization.

28903029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13779.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 28903029 is about 5376.1537366411. The cubic root of 28903029 is about 306.8888569090. Note that the first 4 decimals are identical.

The spelling of 28903029 in words is "twenty-eight million, nine hundred three thousand, twenty-nine".