28979073 has 16 divisors (see below), whose sum is σ = 43133440. Its totient is φ = 19228752.

The previous prime is 28979059. The next prime is 28979107. The reversal of 28979073 is 37097982.

It is not a de Polignac number, because 28979073 - 2¹² = 28974977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28979053) 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 15 ways as a sum of consecutive naturals, for example, 3615 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (2695840).

Almost surely, 2^28979073 is an apocalyptic number.

It is an amenable number.

28979073 is a deficient number, since it is larger than the sum of its proper divisors (14154367).

28979073 is a wasteful number, since it uses less digits than its factorization.

28979073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5039 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 28979073 is about 5383.2214333055. The cubic root of 28979073 is about 307.1577632056.

The spelling of 28979073 in words is "twenty-eight million, nine hundred seventy-nine thousand, seventy-three".