3696192821 has 2 divisors, whose sum is σ = 3696192822. Its totient is φ = 3696192820.

The previous prime is 3696192817. The next prime is 3696192889. The reversal of 3696192821 is 1282916963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3688132900 + 8059921 = 60730^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 3696192821 - 2² = 3696192817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3696192221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1848096410 + 1848096411.

It is an arithmetic number, because the mean of its divisors is an integer number (1848096411).

Almost surely, 2^3696192821 is an apocalyptic number.

It is an amenable number.

3696192821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3696192821 is an equidigital number, since it uses as much as digits as its factorization.

3696192821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 3696192821 is about 60796.3224298970. The cubic root of 3696192821 is about 1546.1496972061.

The spelling of 3696192821 in words is "three billion, six hundred ninety-six million, one hundred ninety-two thousand, eight hundred twenty-one".