3655746397 has 2 divisors, whose sum is σ = 3655746398. Its totient is φ = 3655746396.

The previous prime is 3655746383. The next prime is 3655746421. The reversal of 3655746397 is 7936475563.

3655746397 is digitally balanced in base 3, 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., 3446394436 + 209351961 = 58706^2 + 14469^2 .

It is an emirp because it is prime and its reverse (7936475563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3655746397 - 2¹¹ = 3655744349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3655746097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827873198 + 1827873199.

It is an arithmetic number, because the mean of its divisors is an integer number (1827873199).

Almost surely, 2^3655746397 is an apocalyptic number.

It is an amenable number.

3655746397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655746397 is an equidigital number, since it uses as much as digits as its factorization.

3655746397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14288400, while the sum is 55.

The square root of 3655746397 is about 60462.7686845384. The cubic root of 3655746397 is about 1540.4893026896.

The spelling of 3655746397 in words is "three billion, six hundred fifty-five million, seven hundred forty-six thousand, three hundred ninety-seven".