28026693 has 24 divisors (see below), whose sum is σ = 43400448. Its totient is φ = 17365632.

The previous prime is 28026683. The next prime is 28026701. The reversal of 28026693 is 39662082.

It is not a de Polignac number, because 28026693 - 2⁶ = 28026629 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28026643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11596 + ... + 13802.

It is an arithmetic number, because the mean of its divisors is an integer number (1808352).

Almost surely, 2^28026693 is an apocalyptic number.

It is an amenable number.

28026693 is a deficient number, since it is larger than the sum of its proper divisors (15373755).

28026693 is a wasteful number, since it uses less digits than its factorization.

28026693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 28026693 is about 5294.0242727060. The cubic root of 28026693 is about 303.7553613848.

The spelling of 28026693 in words is "twenty-eight million, twenty-six thousand, six hundred ninety-three".