3681727 has 4 divisors (see below), whose sum is σ = 4207696. Its totient is φ = 3155760.

The previous prime is 3681719. The next prime is 3681731. The reversal of 3681727 is 7271863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7271863 = 1009 ⋅7207.

It is a cyclic number.

It is not a de Polignac number, because 3681727 - 2³ = 3681719 is a prime.

It is a super-2 number, since 2×3681727² = 27110227405058, which contains 22 as substring.

It is a Duffinian number.

3681727 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3681692 and 3681701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262974 + ... + 262987.

It is an arithmetic number, because the mean of its divisors is an integer number (1051924).

Almost surely, 2^3681727 is an apocalyptic number.

3681727 is a deficient number, since it is larger than the sum of its proper divisors (525969).

3681727 is an equidigital number, since it uses as much as digits as its factorization.

3681727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525968.

The product of its digits is 14112, while the sum is 34.

The square root of 3681727 is about 1918.7826870180. The cubic root of 3681727 is about 154.4130000374.

It can be divided in two parts, 368 and 1727, that multiplied together give a palindrome (635536).

The spelling of 3681727 in words is "three million, six hundred eighty-one thousand, seven hundred twenty-seven".