28103337 has 24 divisors (see below), whose sum is σ = 43056000. Its totient is φ = 17614368.

The previous prime is 28103323. The next prime is 28103347. The reversal of 28103337 is 73330182.

It is not a de Polignac number, because 28103337 - 2¹⁴ = 28086953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28103337.

It is not an unprimeable number, because it can be changed into a prime (28103347) 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 23 ways as a sum of consecutive naturals, for example, 24928 + ... + 26030.

It is an arithmetic number, because the mean of its divisors is an integer number (1794000).

Almost surely, 2^28103337 is an apocalyptic number.

It is an amenable number.

28103337 is a deficient number, since it is larger than the sum of its proper divisors (14952663).

28103337 is a wasteful number, since it uses less digits than its factorization.

28103337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 28103337 is about 5301.2580582349. The cubic root of 28103337 is about 304.0320004691.

The spelling of 28103337 in words is "twenty-eight million, one hundred three thousand, three hundred thirty-seven".