28094455 has 16 divisors (see below), whose sum is σ = 36041760. Its totient is φ = 20948992.

The previous prime is 28094447. The next prime is 28094459. The reversal of 28094455 is 55449082.

It is a cyclic number.

It is not a de Polignac number, because 28094455 - 2³ = 28094447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28094459) 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, 7551 + ... + 10639.

It is an arithmetic number, because the mean of its divisors is an integer number (2252610).

Almost surely, 2^28094455 is an apocalyptic number.

28094455 is a deficient number, since it is larger than the sum of its proper divisors (7947305).

28094455 is a wasteful number, since it uses less digits than its factorization.

28094455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28094455 is about 5300.4202663562. The cubic root of 28094455 is about 303.9999675381. Note that the first 4 decimals are identical.

The spelling of 28094455 in words is "twenty-eight million, ninety-four thousand, four hundred fifty-five".