3249947 has 8 divisors (see below), whose sum is σ = 3437952. Its totient is φ = 3067200.

The previous prime is 3249919. The next prime is 3249971. The reversal of 3249947 is 7499423.

3249947 = 139² + 140² + ... + 231².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3249947 - 2¹⁴ = 3233563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3249947.

It is not an unprimeable number, because it can be changed into a prime (3249977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (429744).

Almost surely, 2^3249947 is an apocalyptic number.

3249947 is a deficient number, since it is larger than the sum of its proper divisors (188005).

3249947 is a wasteful number, since it uses less digits than its factorization.

3249947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its digits is 54432, while the sum is 38.

The square root of 3249947 is about 1802.7609381169. The cubic root of 3249947 is about 148.1239982248.

The spelling of 3249947 in words is "three million, two hundred forty-nine thousand, nine hundred forty-seven".