1969682797 has 2 divisors, whose sum is σ = 1969682798. Its totient is φ = 1969682796.

The previous prime is 1969682791. The next prime is 1969682801. The reversal of 1969682797 is 7972869691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1964794276 + 4888521 = 44326^2 + 2211^2 .

It is an emirp because it is prime and its reverse (7972869691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1969682797 - 2¹¹ = 1969680749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1969682791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984841398 + 984841399.

It is an arithmetic number, because the mean of its divisors is an integer number (984841399).

Almost surely, 2^1969682797 is an apocalyptic number.

It is an amenable number.

1969682797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969682797 is an equidigital number, since it uses as much as digits as its factorization.

1969682797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 64.

The square root of 1969682797 is about 44381.1085598366. The cubic root of 1969682797 is about 1253.5223948907.

The spelling of 1969682797 in words is "one billion, nine hundred sixty-nine million, six hundred eighty-two thousand, seven hundred ninety-seven".