3665797 has 2 divisors, whose sum is σ = 3665798. Its totient is φ = 3665796.

The previous prime is 3665791. The next prime is 3665807. The reversal of 3665797 is 7975663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3663396 + 2401 = 1914^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665797 - 2¹¹ = 3663749 is a prime.

3665797 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3665791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832898 + 1832899.

It is an arithmetic number, because the mean of its divisors is an integer number (1832899).

Almost surely, 2^3665797 is an apocalyptic number.

It is an amenable number.

3665797 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665797 is an equidigital number, since it uses as much as digits as its factorization.

3665797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 43.

The square root of 3665797 is about 1914.6271177438. The cubic root of 3665797 is about 154.1899746920.

The spelling of 3665797 in words is "three million, six hundred sixty-five thousand, seven hundred ninety-seven".