28916037 has 24 divisors (see below), whose sum is σ = 43902144. Its totient is φ = 18304704.

The previous prime is 28916033. The next prime is 28916039. The reversal of 28916037 is 73061982.

It is not a de Polignac number, because 28916037 - 2² = 28916033 is a prime.

It is a super-3 number, since 3×28916037³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 28915992 and 28916010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28916033) 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, 33313 + ... + 34169.

It is an arithmetic number, because the mean of its divisors is an integer number (1829256).

Almost surely, 2^28916037 is an apocalyptic number.

It is an amenable number.

28916037 is a deficient number, since it is larger than the sum of its proper divisors (14986107).

28916037 is a wasteful number, since it uses less digits than its factorization.

28916037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 28916037 is about 5377.3633873861. The cubic root of 28916037 is about 306.9348891262.

The spelling of 28916037 in words is "twenty-eight million, nine hundred sixteen thousand, thirty-seven".