3247245 has 12 divisors (see below), whose sum is σ = 5628636. Its totient is φ = 1731840.

The previous prime is 3247243. The next prime is 3247249. The reversal of 3247245 is 5427423.

It can be written as a sum of positive squares in 2 ways, for example, as 2125764 + 1121481 = 1458^2 + 1059^2 .

It is not a de Polignac number, because 3247245 - 2¹ = 3247243 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 2¹⁵ + 4⁸ + 7 + 2²¹ + 4¹⁰ + 5⁵ .

It is a Curzon number.

3247245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3247243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36036 + ... + 36125.

It is an arithmetic number, because the mean of its divisors is an integer number (469053).

Almost surely, 2^3247245 is an apocalyptic number.

It is an amenable number.

3247245 is a deficient number, since it is larger than the sum of its proper divisors (2381391).

3247245 is a wasteful number, since it uses less digits than its factorization.

3247245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72172 (or 72169 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 3247245 is about 1802.0113762127. The cubic root of 3247245 is about 148.0829368360.

It can be divided in two parts, 324 and 7245, that added together give a square (7569 = 87²).

The spelling of 3247245 in words is "three million, two hundred forty-seven thousand, two hundred forty-five".