2664384397 has 2 divisors, whose sum is σ = 2664384398. Its totient is φ = 2664384396.

The previous prime is 2664384341. The next prime is 2664384427. The reversal of 2664384397 is 7934834662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1595682916 + 1068701481 = 39946^2 + 32691^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664384397 - 2¹¹ = 2664382349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2664304397) 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, 1332192198 + 1332192199.

It is an arithmetic number, because the mean of its divisors is an integer number (1332192199).

Almost surely, 2^2664384397 is an apocalyptic number.

It is an amenable number.

2664384397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664384397 is an equidigital number, since it uses as much as digits as its factorization.

2664384397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 52.

The square root of 2664384397 is about 51617.6752382360. The cubic root of 2664384397 is about 1386.3268264356.

The spelling of 2664384397 in words is "two billion, six hundred sixty-four million, three hundred eighty-four thousand, three hundred ninety-seven".