3646746 has 24 divisors (see below), whose sum is σ = 8317920. Its totient is φ = 1151496.

The previous prime is 3646739. The next prime is 3646751. The reversal of 3646746 is 6476463.

3646746 is a `hidden beast` number, since 3 + 646 + 7 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 3646746.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4990 + ... + 5673.

It is an arithmetic number, because the mean of its divisors is an integer number (346580).

Almost surely, 2^3646746 is an apocalyptic number.

3646746 is an abundant number, since it is smaller than the sum of its proper divisors (4671174).

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

3646746 is a wasteful number, since it uses less digits than its factorization.

3646746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690 (or 10687 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 3646746 is about 1909.6455168434. The cubic root of 3646746 is about 153.9224042660.

The spelling of 3646746 in words is "three million, six hundred forty-six thousand, seven hundred forty-six".