3727656 has 48 divisors (see below), whose sum is σ = 10539360. Its totient is φ = 1188000.

The previous prime is 3727621. The next prime is 3727663. The reversal of 3727656 is 6567273.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3727656.

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, 531 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (219570).

Almost surely, 2^3727656 is an apocalyptic number.

3727656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3727656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5269680).

3727656 is an abundant number, since it is smaller than the sum of its proper divisors (6811704).

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

3727656 is a wasteful number, since it uses less digits than its factorization.

3727656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2279 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 3727656 is about 1930.7138576185. The cubic root of 3727656 is about 155.0524414992.

The spelling of 3727656 in words is "three million, seven hundred twenty-seven thousand, six hundred fifty-six".