3638332697 has 2 divisors, whose sum is σ = 3638332698. Its totient is φ = 3638332696.

The previous prime is 3638332693. The next prime is 3638332751. The reversal of 3638332697 is 7962338363.

3638332697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3153496336 + 484836361 = 56156^2 + 22019^2 .

It is a cyclic number.

It is not a de Polignac number, because 3638332697 - 2² = 3638332693 is a prime.

It is not a weakly prime, because it can be changed into another prime (3638332693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819166348 + 1819166349.

It is an arithmetic number, because the mean of its divisors is an integer number (1819166349).

Almost surely, 2^3638332697 is an apocalyptic number.

It is an amenable number.

3638332697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638332697 is an equidigital number, since it uses as much as digits as its factorization.

3638332697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 50.

The square root of 3638332697 is about 60318.5932942737. The cubic root of 3638332697 is about 1538.0394313324.

The spelling of 3638332697 in words is "three billion, six hundred thirty-eight million, three hundred thirty-two thousand, six hundred ninety-seven".