3681747941 has 4 divisors (see below), whose sum is σ = 3688020672. Its totient is φ = 3675475212.

The previous prime is 3681747911. The next prime is 3681747943. The reversal of 3681747941 is 1497471863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3681747941 - 2⁶ = 3681747877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3681747941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681747943) 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, 3135485 + ... + 3136658.

It is an arithmetic number, because the mean of its divisors is an integer number (922005168).

Almost surely, 2^3681747941 is an apocalyptic number.

It is an amenable number.

3681747941 is a deficient number, since it is larger than the sum of its proper divisors (6272731).

3681747941 is an equidigital number, since it uses as much as digits as its factorization.

3681747941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272730.

The product of its digits is 1016064, while the sum is 50.

The square root of 3681747941 is about 60677.4088190984. The cubic root of 3681747941 is about 1544.1329279465.

The spelling of 3681747941 in words is "three billion, six hundred eighty-one million, seven hundred forty-seven thousand, nine hundred forty-one".