3243785 has 8 divisors (see below), whose sum is σ = 3910920. Its totient is φ = 2582784.

The previous prime is 3243781. The next prime is 3243811. The reversal of 3243785 is 5873423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 822649 + 2421136 = 907^2 + 1556^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3243785 - 2² = 3243781 is a prime.

It is a super-2 number, since 2×3243785² = 21044282252450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3243781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (488865).

Almost surely, 2^3243785 is an apocalyptic number.

It is an amenable number.

3243785 is a deficient number, since it is larger than the sum of its proper divisors (667135).

3243785 is a wasteful number, since it uses less digits than its factorization.

3243785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067.

The product of its digits is 20160, while the sum is 32.

The square root of 3243785 is about 1801.0510820074. The cubic root of 3243785 is about 148.0303231026.

The spelling of 3243785 in words is "three million, two hundred forty-three thousand, seven hundred eighty-five".