28545345 has 32 divisors (see below), whose sum is σ = 50976000. Its totient is φ = 15155712.

The previous prime is 28545343. The next prime is 28545347. The reversal of 28545345 is 54354582.

It is an interprime number because it is at equal distance from previous prime (28545343) and next prime (28545347).

It is not a de Polignac number, because 28545345 - 2¹ = 28545343 is a prime.

Its product of digits (96000) is a multiple of the sum of its prime divisors (960).

It is not an unprimeable number, because it can be changed into a prime (28545343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47356 + ... + 47954.

It is an arithmetic number, because the mean of its divisors is an integer number (1593000).

Almost surely, 2^28545345 is an apocalyptic number.

It is an amenable number.

28545345 is a deficient number, since it is larger than the sum of its proper divisors (22430655).

28545345 is a wasteful number, since it uses less digits than its factorization.

28545345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 960 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 28545345 is about 5342.7843864412. The cubic root of 28545345 is about 305.6176500924.

The spelling of 28545345 in words is "twenty-eight million, five hundred forty-five thousand, three hundred forty-five".