28101726 has 24 divisors (see below), whose sum is σ = 61449960. Its totient is φ = 9280656.

The previous prime is 28101721. The next prime is 28101739. The reversal of 28101726 is 62710182.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28101726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28101721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5200 + ... + 9123.

It is an arithmetic number, because the mean of its divisors is an integer number (2560415).

Almost surely, 2^28101726 is an apocalyptic number.

28101726 is an abundant number, since it is smaller than the sum of its proper divisors (33348234).

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

28101726 is a wasteful number, since it uses less digits than its factorization.

28101726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14440 (or 14437 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 28101726 is about 5301.1061109923. The cubic root of 28101726 is about 304.0261908991.

The spelling of 28101726 in words is "twenty-eight million, one hundred one thousand, seven hundred twenty-six".