3647946 has 8 divisors (see below), whose sum is σ = 7295904. Its totient is φ = 1215980.

The previous prime is 3647927. The next prime is 3647947. The reversal of 3647946 is 6497463.

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

3647946 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3647947) 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 3 ways as a sum of consecutive naturals, for example, 303990 + ... + 304001.

It is an arithmetic number, because the mean of its divisors is an integer number (911988).

Almost surely, 2^3647946 is an apocalyptic number.

3647946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3647946 is a wasteful number, since it uses less digits than its factorization.

3647946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607996.

The product of its digits is 108864, while the sum is 39.

The square root of 3647946 is about 1909.9596854384. The cubic root of 3647946 is about 153.9392856747.

The spelling of 3647946 in words is "three million, six hundred forty-seven thousand, nine hundred forty-six".