2064196397 has 2 divisors, whose sum is σ = 2064196398. Its totient is φ = 2064196396.

The previous prime is 2064196391. The next prime is 2064196439. The reversal of 2064196397 is 7936914602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2034100201 + 30096196 = 45101^2 + 5486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064196397 - 2⁶ = 2064196333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2064196391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032098198 + 1032098199.

It is an arithmetic number, because the mean of its divisors is an integer number (1032098199).

Almost surely, 2^2064196397 is an apocalyptic number.

It is an amenable number.

2064196397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064196397 is an equidigital number, since it uses as much as digits as its factorization.

2064196397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 2064196397 is about 45433.4281889448. The cubic root of 2064196397 is about 1273.2597345980.

The spelling of 2064196397 in words is "two billion, sixty-four million, one hundred ninety-six thousand, three hundred ninety-seven".