3946646 has 8 divisors (see below), whose sum is σ = 6458184. Its totient is φ = 1793920.

The previous prime is 3946643. The next prime is 3946673. The reversal of 3946646 is 6466493.

It is a happy number.

3946646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a pancake number, because a pancake can be divided into 3946646 parts by 2809 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89675 + ... + 89718.

It is an arithmetic number, because the mean of its divisors is an integer number (807273).

Almost surely, 2^3946646 is an apocalyptic number.

3946646 is a deficient number, since it is larger than the sum of its proper divisors (2511538).

3946646 is a wasteful number, since it uses less digits than its factorization.

3946646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179406.

The product of its digits is 93312, while the sum is 38.

The square root of 3946646 is about 1986.6167219673. The cubic root of 3946646 is about 158.0311587323.

It can be divided in two parts, 3 and 946646, that added together give a palindrome (946649).

The spelling of 3946646 in words is "three million, nine hundred forty-six thousand, six hundred forty-six".