3691012 has 12 divisors (see below), whose sum is σ = 6956236. Its totient is φ = 1703520.

The previous prime is 3691007. The next prime is 3691013. The reversal of 3691012 is 2101963.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 1331716 = 1536^2 + 1154^2 .

It is not an unprimeable number, because it can be changed into a prime (3691013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35439 + ... + 35542.

Almost surely, 2^3691012 is an apocalyptic number.

It is an amenable number.

3691012 is a deficient number, since it is larger than the sum of its proper divisors (3265224).

3691012 is a wasteful number, since it uses less digits than its factorization.

3691012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70998 (or 70996 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 3691012 is about 1921.2006662501. The cubic root of 3691012 is about 154.5426965220.

Adding to 3691012 its reverse (2101963), we get a palindrome (5792975).

The spelling of 3691012 in words is "three million, six hundred ninety-one thousand, twelve".