28545937 has 8 divisors (see below), whose sum is σ = 33382976. Its totient is φ = 23898672.

The previous prime is 28545929. The next prime is 28545943. The reversal of 28545937 is 73954582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28545937 - 2³ = 28545929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28545893 and 28545902.

It is not an unprimeable number, because it can be changed into a prime (28545997) 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 7 ways as a sum of consecutive naturals, for example, 47118 + ... + 47719.

It is an arithmetic number, because the mean of its divisors is an integer number (4172872).

Almost surely, 2^28545937 is an apocalyptic number.

It is an amenable number.

28545937 is a deficient number, since it is larger than the sum of its proper divisors (4837039).

28545937 is an equidigital number, since it uses as much as digits as its factorization.

28545937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94887.

The product of its digits is 302400, while the sum is 43.

The square root of 28545937 is about 5342.8397879779. The cubic root of 28545937 is about 305.6197628057.

The spelling of 28545937 in words is "twenty-eight million, five hundred forty-five thousand, nine hundred thirty-seven".