3331646 has 4 divisors (see below), whose sum is σ = 4997472. Its totient is φ = 1665822.

The previous prime is 3331639. The next prime is 3331649. The reversal of 3331646 is 6461333.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3331646² = 22199730138632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3331649) 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 as a sum of consecutive naturals, namely, 832910 + ... + 832913.

It is an arithmetic number, because the mean of its divisors is an integer number (1249368).

Almost surely, 2^3331646 is an apocalyptic number.

3331646 is a deficient number, since it is larger than the sum of its proper divisors (1665826).

3331646 is a wasteful number, since it uses less digits than its factorization.

3331646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665825.

The product of its digits is 3888, while the sum is 26.

The square root of 3331646 is about 1825.2797045932. The cubic root of 3331646 is about 149.3549485524.

Adding to 3331646 its reverse (6461333), we get a palindrome (9792979).

The spelling of 3331646 in words is "three million, three hundred thirty-one thousand, six hundred forty-six".