28277193 has 8 divisors (see below), whose sum is σ = 43089088. Its totient is φ = 16158384.

The previous prime is 28277191. The next prime is 28277201. The reversal of 28277193 is 39177282.

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

It is not a de Polignac number, because 28277193 - 2¹ = 28277191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28277191) 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, 673246 + ... + 673287.

It is an arithmetic number, because the mean of its divisors is an integer number (5386136).

Almost surely, 2^28277193 is an apocalyptic number.

It is an amenable number.

28277193 is a deficient number, since it is larger than the sum of its proper divisors (14811895).

28277193 is a wasteful number, since it uses less digits than its factorization.

28277193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346543.

The product of its digits is 42336, while the sum is 39.

The square root of 28277193 is about 5317.6303933237. The cubic root of 28277193 is about 304.6576576321.

The spelling of 28277193 in words is "twenty-eight million, two hundred seventy-seven thousand, one hundred ninety-three".