3247989 has 8 divisors (see below), whose sum is σ = 4390272. Its totient is φ = 2135520.

The previous prime is 3247987. The next prime is 3248017. The reversal of 3247989 is 9897423.

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

It is not a de Polignac number, because 3247989 - 2¹ = 3247987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3247989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3247987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7197 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (548784).

Almost surely, 2^3247989 is an apocalyptic number.

It is an amenable number.

3247989 is a deficient number, since it is larger than the sum of its proper divisors (1142283).

3247989 is a wasteful number, since it uses less digits than its factorization.

3247989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14907.

The product of its digits is 108864, while the sum is 42.

The square root of 3247989 is about 1802.2178003782. The cubic root of 3247989 is about 148.0942454265.

The spelling of 3247989 in words is "three million, two hundred forty-seven thousand, nine hundred eighty-nine".