28955267 has 8 divisors (see below), whose sum is σ = 33445872. Its totient is φ = 24774400.

The previous prime is 28955263. The next prime is 28955279. The reversal of 28955267 is 76255982.

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 28955267 - 2² = 28955263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28955261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77234 + ... + 77607.

It is an arithmetic number, because the mean of its divisors is an integer number (4180734).

Almost surely, 2^28955267 is an apocalyptic number.

28955267 is a deficient number, since it is larger than the sum of its proper divisors (4490605).

28955267 is a wasteful number, since it uses less digits than its factorization.

28955267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154869.

The product of its digits is 302400, while the sum is 44.

The square root of 28955267 is about 5381.0098494613. The cubic root of 28955267 is about 307.0736312192.

The spelling of 28955267 in words is "twenty-eight million, nine hundred fifty-five thousand, two hundred sixty-seven".