3731688 has 24 divisors (see below), whose sum is σ = 10106850. Its totient is φ = 1243872.

The previous prime is 3731683. The next prime is 3731701. The reversal of 3731688 is 8861373.

3731688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 338724 = 1842^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (3731683) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 25843 + ... + 25986.

Almost surely, 2^3731688 is an apocalyptic number.

It is an amenable number.

3731688 is an abundant number, since it is smaller than the sum of its proper divisors (6375162).

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

3731688 is a wasteful number, since it uses less digits than its factorization.

3731688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51841 (or 51834 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3731688 is about 1931.7577487874. The cubic root of 3731688 is about 155.1083252480.

The spelling of 3731688 in words is "three million, seven hundred thirty-one thousand, six hundred eighty-eight".