28236826 has 8 divisors (see below), whose sum is σ = 42508980. Its totient is φ = 14067168.

The previous prime is 28236821. The next prime is 28236827. The reversal of 28236826 is 62863282.

It can be written as a sum of positive squares in 2 ways, for example, as 24492601 + 3744225 = 4949^2 + 1935^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28236821) 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, 24931 + ... + 26038.

Almost surely, 2^28236826 is an apocalyptic number.

28236826 is a deficient number, since it is larger than the sum of its proper divisors (14272154).

28236826 is a wasteful number, since it uses less digits than its factorization.

28236826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51248.

The product of its digits is 55296, while the sum is 37.

The square root of 28236826 is about 5313.8334561783. The cubic root of 28236826 is about 304.5126176305.

The spelling of 28236826 in words is "twenty-eight million, two hundred thirty-six thousand, eight hundred twenty-six".