28026894 has 32 divisors (see below), whose sum is σ = 64705536. Its totient is φ = 7927200.

The previous prime is 28026893. The next prime is 28026907. The reversal of 28026894 is 49862082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28026893) 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, 939 + ... + 7545.

It is an arithmetic number, because the mean of its divisors is an integer number (2022048).

Almost surely, 2^28026894 is an apocalyptic number.

28026894 is an abundant number, since it is smaller than the sum of its proper divisors (36678642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28026894 is a wasteful number, since it uses less digits than its factorization.

28026894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 28026894 is about 5294.0432563401. The cubic root of 28026894 is about 303.7560875340.

It can be divided in two parts, 28026 and 894, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28026894 in words is "twenty-eight million, twenty-six thousand, eight hundred ninety-four".