28236726 has 24 divisors (see below), whose sum is σ = 69919824. Its totient is φ = 8067600.

The previous prime is 28236701. The next prime is 28236727. The reversal of 28236726 is 62763282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28236727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111925 + ... + 112176.

It is an arithmetic number, because the mean of its divisors is an integer number (2913326).

Almost surely, 2^28236726 is an apocalyptic number.

28236726 is an abundant number, since it is smaller than the sum of its proper divisors (41683098).

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

28236726 is a wasteful number, since it uses less digits than its factorization.

28236726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224116 (or 224113 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 28236726 is about 5313.8240467671. The cubic root of 28236726 is about 304.5122581555.

The spelling of 28236726 in words is "twenty-eight million, two hundred thirty-six thousand, seven hundred twenty-six".