3727644 has 24 divisors (see below), whose sum is σ = 8778000. Its totient is φ = 1231104.

The previous prime is 3727621. The next prime is 3727663. The reversal of 3727644 is 4467273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (365750).

Almost surely, 2^3727644 is an apocalyptic number.

It is an amenable number.

3727644 is an abundant number, since it is smaller than the sum of its proper divisors (5050356).

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

3727644 is a wasteful number, since it uses less digits than its factorization.

3727644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2867 counting only the distinct ones).

The product of its digits is 28224, while the sum is 33.

The square root of 3727644 is about 1930.7107499571. The cubic root of 3727644 is about 155.0522751184.

It can be divided in two parts, 3727 and 644, that added together give a triangular number (4371 = T₉₃).

The spelling of 3727644 in words is "three million, seven hundred twenty-seven thousand, six hundred forty-four".