3163644 has 48 divisors (see below), whose sum is σ = 8951040. Its totient is φ = 958320.

The previous prime is 3163637. The next prime is 3163663. The reversal of 3163644 is 4463613.

3163644 = T₃₅₇ + T₃₅₈ + ... + T₄₀₀.

3163644 is a `hidden beast` number, since 3 + 16 + 3 + 644 = 666.

3163644 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 144 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (186480).

Almost surely, 2^3163644 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 3163644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4475520).

3163644 is an abundant number, since it is smaller than the sum of its proper divisors (5787396).

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

3163644 is a wasteful number, since it uses less digits than its factorization.

3163644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687 (or 2679 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 3163644 is about 1778.6635432256. The cubic root of 3163644 is about 146.8010636773.

The spelling of 3163644 in words is "three million, one hundred sixty-three thousand, six hundred forty-four".