3687691041 has 6 divisors (see below), whose sum is σ = 5326664850. Its totient is φ = 2458460688.

The previous prime is 3687691031. The next prime is 3687691067. The reversal of 3687691041 is 1401967863.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3686918400 + 772641 = 60720^2 + 879^2 .

It is not a de Polignac number, because 3687691041 - 2¹¹ = 3687688993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3687691031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204871716 + ... + 204871733.

It is an arithmetic number, because the mean of its divisors is an integer number (887777475).

Almost surely, 2^3687691041 is an apocalyptic number.

It is an amenable number.

3687691041 is a deficient number, since it is larger than the sum of its proper divisors (1638973809).

3687691041 is a wasteful number, since it uses less digits than its factorization.

3687691041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409743455 (or 409743452 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3687691041 is about 60726.3619937832. The cubic root of 3687691041 is about 1544.9633308920.

The spelling of 3687691041 in words is "three billion, six hundred eighty-seven million, six hundred ninety-one thousand, forty-one".