3257745 has 16 divisors (see below), whose sum is σ = 5268480. Its totient is φ = 1718784.

The previous prime is 3257731. The next prime is 3257747. The reversal of 3257745 is 5477523.

3257745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3257745 - 2⁵ = 3257713 is a prime.

It is a super-3 number, since 3×3257745³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

3257745 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3257747) 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 15 ways as a sum of consecutive naturals, for example, 336 + ... + 2574.

It is an arithmetic number, because the mean of its divisors is an integer number (329280).

Almost surely, 2^3257745 is an apocalyptic number.

It is an amenable number.

3257745 is a deficient number, since it is larger than the sum of its proper divisors (2010735).

3257745 is a wasteful number, since it uses less digits than its factorization.

3257745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344.

The product of its digits is 29400, while the sum is 33.

The square root of 3257745 is about 1804.9224360066. The cubic root of 3257745 is about 148.2423743432.

The spelling of 3257745 in words is "three million, two hundred fifty-seven thousand, seven hundred forty-five".