28903226 has 24 divisors (see below), whose sum is σ = 49559904. Its totient is φ = 12514040.

The previous prime is 28903223. The next prime is 28903241. The reversal of 28903226 is 62230982.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28903192 and 28903201.

It is not an unprimeable number, because it can be changed into a prime (28903223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120815 + ... + 121053.

It is an arithmetic number, because the mean of its divisors is an integer number (2064996).

Almost surely, 2^28903226 is an apocalyptic number.

28903226 is a deficient number, since it is larger than the sum of its proper divisors (20656678).

28903226 is a wasteful number, since it uses less digits than its factorization.

28903226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 28903226 is about 5376.1720582586. The cubic root of 28903226 is about 306.8895541481.

It can be divided in two parts, 2890 and 3226, that added together give a palindrome (6116).

The spelling of 28903226 in words is "twenty-eight million, nine hundred three thousand, two hundred twenty-six".