28348245 has 16 divisors (see below), whose sum is σ = 50397120. Its totient is φ = 15118992.

The previous prime is 28348237. The next prime is 28348267. The reversal of 28348245 is 54284382.

It is not a de Polignac number, because 28348245 - 2³ = 28348237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 104859 + ... + 105128.

It is an arithmetic number, because the mean of its divisors is an integer number (3149820).

Almost surely, 2^28348245 is an apocalyptic number.

It is an amenable number.

28348245 is a deficient number, since it is larger than the sum of its proper divisors (22048875).

28348245 is a wasteful number, since it uses less digits than its factorization.

28348245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210001 (or 209995 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 28348245 is about 5324.3069971593. The cubic root of 28348245 is about 304.9126149372.

The spelling of 28348245 in words is "twenty-eight million, three hundred forty-eight thousand, two hundred forty-five".