28956755 has 16 divisors (see below), whose sum is σ = 35916384. Its totient is φ = 22394880.

The previous prime is 28956751. The next prime is 28956757. The reversal of 28956755 is 55765982.

28956755 = T₃ + T₄ + ... + T₅₅₇.

It is not a de Polignac number, because 28956755 - 2² = 28956751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28956751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35300 + ... + 36110.

It is an arithmetic number, because the mean of its divisors is an integer number (2244774).

Almost surely, 2^28956755 is an apocalyptic number.

28956755 is a deficient number, since it is larger than the sum of its proper divisors (6959629).

28956755 is a wasteful number, since it uses less digits than its factorization.

28956755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its digits is 756000, while the sum is 47.

The square root of 28956755 is about 5381.1481116951. The cubic root of 28956755 is about 307.0788912610.

The spelling of 28956755 in words is "twenty-eight million, nine hundred fifty-six thousand, seven hundred fifty-five".