28911153 has 8 divisors (see below), whose sum is σ = 38577600. Its totient is φ = 19259408.

The previous prime is 28911137. The next prime is 28911187. The reversal of 28911153 is 35111982.

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 28911153 - 2⁴ = 28911137 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28911153.

It is not an unprimeable number, because it can be changed into a prime (28911353) 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, 2308 + ... + 7946.

It is an arithmetic number, because the mean of its divisors is an integer number (4822200).

Almost surely, 2^28911153 is an apocalyptic number.

It is an amenable number.

28911153 is a deficient number, since it is larger than the sum of its proper divisors (9666447).

28911153 is a wasteful number, since it uses less digits than its factorization.

28911153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351.

The product of its digits is 2160, while the sum is 30.

The square root of 28911153 is about 5376.9092423064. The cubic root of 28911153 is about 306.9176074311.

The spelling of 28911153 in words is "twenty-eight million, nine hundred eleven thousand, one hundred fifty-three".