3731687 has 16 divisors (see below), whose sum is σ = 4177152. Its totient is φ = 3317760.

The previous prime is 3731683. The next prime is 3731701. The reversal of 3731687 is 7861373.

It is a cyclic number.

It is not a de Polignac number, because 3731687 - 2² = 3731683 is a prime.

It is a d-powerful number, because it can be written as 3⁸ + 7⁵ + 3¹³ + 1 + 6² + 8⁷ + 7⁵ .

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38423 + ... + 38519.

It is an arithmetic number, because the mean of its divisors is an integer number (261072).

Almost surely, 2^3731687 is an apocalyptic number.

3731687 is a deficient number, since it is larger than the sum of its proper divisors (445465).

3731687 is a wasteful number, since it uses less digits than its factorization.

3731687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 21168, while the sum is 35.

The square root of 3731687 is about 1931.7574899557. The cubic root of 3731687 is about 155.1083113930.

The spelling of 3731687 in words is "three million, seven hundred thirty-one thousand, six hundred eighty-seven".