28673601 has 16 divisors (see below), whose sum is σ = 41853888. Its totient is φ = 17316800.

The previous prime is 28673591. The next prime is 28673621. The reversal of 28673601 is 10637682.

It is a cyclic number.

It is not a de Polignac number, because 28673601 - 2⁹ = 28673089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28673621) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9091 + ... + 11831.

It is an arithmetic number, because the mean of its divisors is an integer number (2615868).

Almost surely, 2^28673601 is an apocalyptic number.

It is an amenable number.

28673601 is a deficient number, since it is larger than the sum of its proper divisors (13180287).

28673601 is a wasteful number, since it uses less digits than its factorization.

28673601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28673601 is about 5354.7736646846. The cubic root of 28673601 is about 306.0746859434.

The spelling of 28673601 in words is "twenty-eight million, six hundred seventy-three thousand, six hundred one".