3845745 has 32 divisors (see below), whose sum is σ = 6963840. Its totient is φ = 2013120.

The previous prime is 3845741. The next prime is 3845747. The reversal of 3845745 is 5475483.

3845745 is a `hidden beast` number, since 3 + 84 + 574 + 5 = 666.

It is not a de Polignac number, because 3845745 - 2² = 3845741 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3845741) 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 31 ways as a sum of consecutive naturals, for example, 8002 + ... + 8468.

It is an arithmetic number, because the mean of its divisors is an integer number (217620).

Almost surely, 2^3845745 is an apocalyptic number.

It is an amenable number.

3845745 is a deficient number, since it is larger than the sum of its proper divisors (3118095).

3845745 is a wasteful number, since it uses less digits than its factorization.

3845745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 536 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 3845745 is about 1961.0571128858. The cubic root of 3845745 is about 156.6727601875.

The spelling of 3845745 in words is "three million, eight hundred forty-five thousand, seven hundred forty-five".