28112726 has 8 divisors (see below), whose sum is σ = 42198624. Its totient is φ = 14046520.

The previous prime is 28112719. The next prime is 28112729. The reversal of 28112726 is 62721182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590 + ... + 7521.

It is an arithmetic number, because the mean of its divisors is an integer number (5274828).

Almost surely, 2^28112726 is an apocalyptic number.

28112726 is a deficient number, since it is larger than the sum of its proper divisors (14085898).

28112726 is a wasteful number, since it uses less digits than its factorization.

28112726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846.

The product of its digits is 2688, while the sum is 29.

The square root of 28112726 is about 5302.1435288004. The cubic root of 28112726 is about 304.0658545581.

It can be divided in two parts, 28 and 112726, that multiplied together give a triangular number (3156328 = T₂₅₁₂).

The spelling of 28112726 in words is "twenty-eight million, one hundred twelve thousand, seven hundred twenty-six".