28316937 has 16 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 16742400.

The previous prime is 28316929. The next prime is 28316957. The reversal of 28316937 is 73961382.

It is not a de Polignac number, because 28316937 - 2³ = 28316929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28316895 and 28316904.

It is not an unprimeable number, because it can be changed into a prime (28316957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9112 + ... + 11817.

It is an arithmetic number, because the mean of its divisors is an integer number (2637180).

Almost surely, 2^28316937 is an apocalyptic number.

It is an amenable number.

28316937 is a deficient number, since it is larger than the sum of its proper divisors (13877943).

28316937 is a wasteful number, since it uses less digits than its factorization.

28316937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984.

The product of its digits is 54432, while the sum is 39.

The square root of 28316937 is about 5321.3660840051. The cubic root of 28316937 is about 304.8003243809.

The spelling of 28316937 in words is "twenty-eight million, three hundred sixteen thousand, nine hundred thirty-seven".