3247749 has 16 divisors (see below), whose sum is σ = 4943040. Its totient is φ = 2106000.

The previous prime is 3247703. The next prime is 3247759. The reversal of 3247749 is 9477423.

It is not a de Polignac number, because 3247749 - 2¹¹ = 3245701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3247759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627 + ... + 2624.

It is an arithmetic number, because the mean of its divisors is an integer number (308940).

Almost surely, 2^3247749 is an apocalyptic number.

It is an amenable number.

3247749 is a deficient number, since it is larger than the sum of its proper divisors (1695291).

3247749 is a wasteful number, since it uses less digits than its factorization.

3247749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3291 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3247749 is about 1802.1512145211. The cubic root of 3247749 is about 148.0905976828.

The spelling of 3247749 in words is "three million, two hundred forty-seven thousand, seven hundred forty-nine".