28959167 has 4 divisors (see below), whose sum is σ = 29632680. Its totient is φ = 28285656.

The previous prime is 28959149. The next prime is 28959179. The reversal of 28959167 is 76195982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28959167 - 2⁶ = 28959103 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 (28959127) 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 3 ways as a sum of consecutive naturals, for example, 336692 + ... + 336777.

It is an arithmetic number, because the mean of its divisors is an integer number (7408170).

Almost surely, 2^28959167 is an apocalyptic number.

28959167 is a deficient number, since it is larger than the sum of its proper divisors (673513).

28959167 is an equidigital number, since it uses as much as digits as its factorization.

28959167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673512.

The product of its digits is 272160, while the sum is 47.

The square root of 28959167 is about 5381.3722227700. The cubic root of 28959167 is about 307.0874172361.

The spelling of 28959167 in words is "twenty-eight million, nine hundred fifty-nine thousand, one hundred sixty-seven".