28730167 has 8 divisors (see below), whose sum is σ = 29883200. Its totient is φ = 27597024.

The previous prime is 28730161. The next prime is 28730183. The reversal of 28730167 is 76103782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28730167 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 (28730161) 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, 1992 + ... + 7837.

It is an arithmetic number, because the mean of its divisors is an integer number (3735400).

Almost surely, 2^28730167 is an apocalyptic number.

28730167 is a deficient number, since it is larger than the sum of its proper divisors (1153033).

28730167 is an equidigital number, since it uses as much as digits as its factorization.

28730167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28730167 is about 5360.0528915301. The cubic root of 28730167 is about 306.2758238949.

The spelling of 28730167 in words is "twenty-eight million, seven hundred thirty thousand, one hundred sixty-seven".