28967039 has 8 divisors (see below), whose sum is σ = 30624000. Its totient is φ = 27323352.

The previous prime is 28967023. The next prime is 28967063. The reversal of 28967039 is 93076982.

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

It is a cyclic number.

It is not a de Polignac number, because 28967039 - 2⁴ = 28967023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28967069) 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, 1352 + ... + 7730.

It is an arithmetic number, because the mean of its divisors is an integer number (3828000).

Almost surely, 2^28967039 is an apocalyptic number.

28967039 is a deficient number, since it is larger than the sum of its proper divisors (1656961).

28967039 is a wasteful number, since it uses less digits than its factorization.

28967039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6637.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 28967039 is about 5382.1035850307. The cubic root of 28967039 is about 307.1152400109.

The spelling of 28967039 in words is "twenty-eight million, nine hundred sixty-seven thousand, thirty-nine".