28673101 has 8 divisors (see below), whose sum is σ = 30474360. Its totient is φ = 26884608.

The previous prime is 28673093. The next prime is 28673107. The reversal of 28673101 is 10137682.

It can be written as a sum of positive squares in 4 ways, for example, as 1320201 + 27352900 = 1149^2 + 5230^2 .

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 28673101 - 2³ = 28673093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28673101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28673107) 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, 1665 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (3809295).

Almost surely, 2^28673101 is an apocalyptic number.

It is an amenable number.

28673101 is a deficient number, since it is larger than the sum of its proper divisors (1801259).

28673101 is a wasteful number, since it uses less digits than its factorization.

28673101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 28673101 is about 5354.7269771670. The cubic root of 28673101 is about 306.0729068594.

The spelling of 28673101 in words is "twenty-eight million, six hundred seventy-three thousand, one hundred one".