3681011 has 4 divisors (see below), whose sum is σ = 3695592. Its totient is φ = 3666432.

The previous prime is 3681001. The next prime is 3681017. The reversal of 3681011 is 1101863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3681011 - 2⁶ = 3680947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681017) 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, 6905 + ... + 7418.

It is an arithmetic number, because the mean of its divisors is an integer number (923898).

Almost surely, 2^3681011 is an apocalyptic number.

3681011 is a deficient number, since it is larger than the sum of its proper divisors (14581).

3681011 is a wasteful number, since it uses less digits than its factorization.

3681011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 3681011 is about 1918.5961013199. The cubic root of 3681011 is about 154.4029896197.

Adding to 3681011 its reverse (1101863), we get a palindrome (4782874).

The spelling of 3681011 in words is "three million, six hundred eighty-one thousand, eleven".