3646356 has 48 divisors (see below), whose sum is σ = 9859584. Its totient is φ = 1027296.

The previous prime is 3646343. The next prime is 3646361. The reversal of 3646356 is 6536463.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6711 + ... + 7233.

It is an arithmetic number, because the mean of its divisors is an integer number (205408).

Almost surely, 2^3646356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3646356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4929792).

3646356 is an abundant number, since it is smaller than the sum of its proper divisors (6213228).

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

3646356 is a wasteful number, since it uses less digits than its factorization.

3646356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 618 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 3646356 is about 1909.5434009208. The cubic root of 3646356 is about 153.9169170108.

The spelling of 3646356 in words is "three million, six hundred forty-six thousand, three hundred fifty-six".