1922538797 has 2 divisors, whose sum is σ = 1922538798. Its totient is φ = 1922538796.

The previous prime is 1922538791. The next prime is 1922538809. The reversal of 1922538797 is 7978352291.

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., 1922471716 + 67081 = 43846^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 1922538797 - 2⁶ = 1922538733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1922538791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961269398 + 961269399.

It is an arithmetic number, because the mean of its divisors is an integer number (961269399).

Almost surely, 2^1922538797 is an apocalyptic number.

It is an amenable number.

1922538797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922538797 is an equidigital number, since it uses as much as digits as its factorization.

1922538797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 1922538797 is about 43846.7649547832. The cubic root of 1922538797 is about 1243.4405828049.

The spelling of 1922538797 in words is "one billion, nine hundred twenty-two million, five hundred thirty-eight thousand, seven hundred ninety-seven".