3249409 has 4 divisors (see below), whose sum is σ = 3302740. Its totient is φ = 3196080.

The previous prime is 3249401. The next prime is 3249419. The reversal of 3249409 is 9049423.

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 176400 + 3073009 = 420^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 3249409 - 2³ = 3249401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3249401) 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, 26574 + ... + 26695.

It is an arithmetic number, because the mean of its divisors is an integer number (825685).

Almost surely, 2^3249409 is an apocalyptic number.

It is an amenable number.

3249409 is a deficient number, since it is larger than the sum of its proper divisors (53331).

3249409 is an equidigital number, since it uses as much as digits as its factorization.

3249409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53330.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3249409 is about 1802.6117163716. The cubic root of 3249409 is about 148.1158242341.

It can be divided in two parts, 324 and 9409, that multiplied together give a square (3048516 = 1746²).

The spelling of 3249409 in words is "three million, two hundred forty-nine thousand, four hundred nine".