3681658597 has 2 divisors, whose sum is σ = 3681658598. Its totient is φ = 3681658596.

The previous prime is 3681658559. The next prime is 3681658613. The reversal of 3681658597 is 7958561863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3615496641 + 66161956 = 60129^2 + 8134^2 .

It is a cyclic number.

It is not a de Polignac number, because 3681658597 - 2¹¹ = 3681656549 is a prime.

It is a super-2 number, since 2×3681658597² = 27109220049728016818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3681658697) 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, 1840829298 + 1840829299.

It is an arithmetic number, because the mean of its divisors is an integer number (1840829299).

Almost surely, 2^3681658597 is an apocalyptic number.

It is an amenable number.

3681658597 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681658597 is an equidigital number, since it uses as much as digits as its factorization.

3681658597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 58.

The square root of 3681658597 is about 60676.6725933451. The cubic root of 3681658597 is about 1544.1204374908.

The spelling of 3681658597 in words is "three billion, six hundred eighty-one million, six hundred fifty-eight thousand, five hundred ninety-seven".