3249845 has 4 divisors (see below), whose sum is σ = 3899820. Its totient is φ = 2599872.

The previous prime is 3249833. The next prime is 3249847. The reversal of 3249845 is 5489423.

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 734449 + 2515396 = 857^2 + 1586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3249845 is a prime.

It is a super-2 number, since 2×3249845² = 21122985048050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3249847) 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, 324980 + ... + 324989.

It is an arithmetic number, because the mean of its divisors is an integer number (974955).

Almost surely, 2^3249845 is an apocalyptic number.

It is an amenable number.

3249845 is a deficient number, since it is larger than the sum of its proper divisors (649975).

3249845 is an equidigital number, since it uses as much as digits as its factorization.

3249845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649974.

The product of its digits is 34560, while the sum is 35.

The square root of 3249845 is about 1802.7326479542. The cubic root of 3249845 is about 148.1224485784.

The spelling of 3249845 in words is "three million, two hundred forty-nine thousand, eight hundred forty-five".