28176213 has 8 divisors (see below), whose sum is σ = 40458208. Its totient is φ = 17339184.

The previous prime is 28176167. The next prime is 28176229. The reversal of 28176213 is 31267182.

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

It is not a de Polignac number, because 28176213 - 2⁶ = 28176149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28176013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361195 + ... + 361272.

It is an arithmetic number, because the mean of its divisors is an integer number (5057276).

Almost surely, 2^28176213 is an apocalyptic number.

It is an amenable number.

28176213 is a deficient number, since it is larger than the sum of its proper divisors (12281995).

28176213 is a wasteful number, since it uses less digits than its factorization.

28176213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722483.

The product of its digits is 4032, while the sum is 30.

The square root of 28176213 is about 5308.1270708226. The cubic root of 28176213 is about 304.2945732237.

The spelling of 28176213 in words is "twenty-eight million, one hundred seventy-six thousand, two hundred thirteen".