1922665797 has 12 divisors (see below), whose sum is σ = 2990813644. Its totient is φ = 1183178880.

The previous prime is 1922665769. The next prime is 1922665873. The reversal of 1922665797 is 7975662291.

1922665797 is a `hidden beast` number, since 1 + 9 + 2 + 2 + 66 + 579 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 344510721 + 1578155076 = 18561^2 + 39726^2 .

It is not a de Polignac number, because 1922665797 - 2¹⁰ = 1922664773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922665747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8216404 + ... + 8216637.

Almost surely, 2^1922665797 is an apocalyptic number.

It is an amenable number.

1922665797 is a deficient number, since it is larger than the sum of its proper divisors (1068147847).

1922665797 is a wasteful number, since it uses less digits than its factorization.

1922665797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16433060 (or 16433057 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 1922665797 is about 43848.2131562963. The cubic root of 1922665797 is about 1243.4679621357.

The spelling of 1922665797 in words is "one billion, nine hundred twenty-two million, six hundred sixty-five thousand, seven hundred ninety-seven".