3243013 has 4 divisors (see below), whose sum is σ = 3330700. Its totient is φ = 3155328.
The previous prime is 3243007. The next prime is 3243043. The reversal of 3243013 is 3103423.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 2125764 + 1117249 = 1458^2 + 1057^2 .
It is a cyclic number.
It is not a de Polignac number, because 3243013 - 213 = 3234821 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3243043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43788 + ... + 43861.
It is an arithmetic number, because the mean of its divisors is an integer number (832675).
Almost surely, 23243013 is an apocalyptic number.
It is an amenable number.
3243013 is a deficient number, since it is larger than the sum of its proper divisors (87687).
3243013 is an equidigital number, since it uses as much as digits as its factorization.
3243013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87686.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 3243013 is about 1800.8367499582. The cubic root of 3243013 is about 148.0185787488.
Adding to 3243013 its reverse (3103423), we get a palindrome (6346436).
The spelling of 3243013 in words is "three million, two hundred forty-three thousand, thirteen".
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