3731616 has 96 divisors (see below), whose sum is σ = 12458880. Its totient is φ = 1064448.

The previous prime is 3731603. The next prime is 3731621. The reversal of 3731616 is 6161373.

It is a tau number, because it is divible by the number of its divisors (96).

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 self number, because there is not a number n which added to its sum of digits gives 3731616.

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, 5740 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (129780).

Almost surely, 2^3731616 is an apocalyptic number.

3731616 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 3731616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6229440).

3731616 is an abundant number, since it is smaller than the sum of its proper divisors (8727264).

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

3731616 is a wasteful number, since it uses less digits than its factorization.

3731616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 629 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 3731616 is about 1931.7391128204. The cubic root of 3731616 is about 155.1073276770.

Adding to 3731616 its reverse (6161373), we get a palindrome (9892989).

The spelling of 3731616 in words is "three million, seven hundred thirty-one thousand, six hundred sixteen".