28673412 has 12 divisors (see below), whose sum is σ = 66904656. Its totient is φ = 9557800.

The previous prime is 28673377. The next prime is 28673443. The reversal of 28673412 is 21437682.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194714 + ... + 1194737.

It is an arithmetic number, because the mean of its divisors is an integer number (5575388).

Almost surely, 2^28673412 is an apocalyptic number.

It is an amenable number.

28673412 is an abundant number, since it is smaller than the sum of its proper divisors (38231244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28673412 is a wasteful number, since it uses less digits than its factorization.

28673412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389458 (or 2389456 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 28673412 is about 5354.7560168508. The cubic root of 28673412 is about 306.0740134521.

The spelling of 28673412 in words is "twenty-eight million, six hundred seventy-three thousand, four hundred twelve".