992640269 has 2 divisors, whose sum is σ = 992640270. Its totient is φ = 992640268.

The previous prime is 992640263. The next prime is 992640277. The reversal of 992640269 is 962046299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623500900 + 369139369 = 24970^2 + 19213^2 .

It is an emirp because it is prime and its reverse (962046299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 992640269 - 2¹² = 992636173 is a prime.

It is a super-2 number, since 2×992640269² = 1970669407280784722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992640263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496320134 + 496320135.

It is an arithmetic number, because the mean of its divisors is an integer number (496320135).

Almost surely, 2^992640269 is an apocalyptic number.

It is an amenable number.

992640269 is a deficient number, since it is larger than the sum of its proper divisors (1).

992640269 is an equidigital number, since it uses as much as digits as its factorization.

992640269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 992640269 is about 31506.1941370265. The cubic root of 992640269 is about 997.5407131998.

The spelling of 992640269 in words is "nine hundred ninety-two million, six hundred forty thousand, two hundred sixty-nine".