28537113 has 16 divisors (see below), whose sum is σ = 41674752. Its totient is φ = 17226000.

The previous prime is 28537099. The next prime is 28537121. The reversal of 28537113 is 31173582.

It is not a de Polignac number, because 28537113 - 2⁴ = 28537097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28537163) 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 15 ways as a sum of consecutive naturals, for example, 7348 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (2604672).

Almost surely, 2^28537113 is an apocalyptic number.

It is an amenable number.

28537113 is a deficient number, since it is larger than the sum of its proper divisors (13137639).

28537113 is a wasteful number, since it uses less digits than its factorization.

28537113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476.

The product of its digits is 5040, while the sum is 30.

The square root of 28537113 is about 5342.0139460694. The cubic root of 28537113 is about 305.5882689285.

The spelling of 28537113 in words is "twenty-eight million, five hundred thirty-seven thousand, one hundred thirteen".