3627681 has 16 divisors (see below), whose sum is σ = 5189184. Its totient is φ = 2246144.

The previous prime is 3627677. The next prime is 3627683. The reversal of 3627681 is 1867263.

It is a cyclic number.

It is not a de Polignac number, because 3627681 - 2² = 3627677 is a prime.

It is a super-2 number, since 2×3627681² = 26320138875522, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3627683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805 + ... + 4661.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

Almost surely, 2^3627681 is an apocalyptic number.

It is an amenable number.

3627681 is a deficient number, since it is larger than the sum of its proper divisors (1561503).

3627681 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 3627681 = (6738216)₉.

3627681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 12096, while the sum is 33.

The square root of 3627681 is about 1904.6472114279. The cubic root of 3627681 is about 153.6537026710.

The spelling of 3627681 in words is "three million, six hundred twenty-seven thousand, six hundred eighty-one".