1992566969 has 2 divisors, whose sum is σ = 1992566970. Its totient is φ = 1992566968.

The previous prime is 1992566963. The next prime is 1992566987. The reversal of 1992566969 is 9696652991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1729478569 + 263088400 = 41587^2 + 16220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992566969 - 2²⁰ = 1991518393 is a prime.

It is a super-2 number, since 2×1992566969² = 7940646251899693922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1992566963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996283484 + 996283485.

It is an arithmetic number, because the mean of its divisors is an integer number (996283485).

Almost surely, 2^1992566969 is an apocalyptic number.

It is an amenable number.

1992566969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992566969 is an equidigital number, since it uses as much as digits as its factorization.

1992566969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14171760, while the sum is 62.

The square root of 1992566969 is about 44638.1783790513. The cubic root of 1992566969 is about 1258.3582735619.

The spelling of 1992566969 in words is "one billion, nine hundred ninety-two million, five hundred sixty-six thousand, nine hundred sixty-nine".