28396029 has 8 divisors (see below), whose sum is σ = 37952992. Its totient is φ = 18884880.

The previous prime is 28396019. The next prime is 28396033. The reversal of 28396029 is 92069382.

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

It is a de Polignac number, because none of the positive numbers 2^k-28396029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28396019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9979 + ... + 12504.

It is an arithmetic number, because the mean of its divisors is an integer number (4744124).

Almost surely, 2^28396029 is an apocalyptic number.

It is an amenable number.

28396029 is a deficient number, since it is larger than the sum of its proper divisors (9556963).

28396029 is a wasteful number, since it uses less digits than its factorization.

28396029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22907.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 28396029 is about 5328.7924523291. The cubic root of 28396029 is about 305.0838397126.

The spelling of 28396029 in words is "twenty-eight million, three hundred ninety-six thousand, twenty-nine".