3684534691 has 2 divisors, whose sum is σ = 3684534692. Its totient is φ = 3684534690.

The previous prime is 3684534683. The next prime is 3684534751. The reversal of 3684534691 is 1964354863.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3684534691 - 2³ = 3684534683 is a prime.

It is not a weakly prime, because it can be changed into another prime (3684534991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842267345 + 1842267346.

It is an arithmetic number, because the mean of its divisors is an integer number (1842267346).

Almost surely, 2^3684534691 is an apocalyptic number.

3684534691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684534691 is an equidigital number, since it uses as much as digits as its factorization.

3684534691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The square root of 3684534691 is about 60700.3681290320. The cubic root of 3684534691 is about 1544.5224193215.

The spelling of 3684534691 in words is "three billion, six hundred eighty-four million, five hundred thirty-four thousand, six hundred ninety-one".