992006557 has 2 divisors, whose sum is σ = 992006558. Its totient is φ = 992006556.

The previous prime is 992006551. The next prime is 992006579. The reversal of 992006557 is 755600299.

It is a happy number.

992006557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 974750841 + 17255716 = 31221^2 + 4154^2 .

It is a cyclic number.

It is not a de Polignac number, because 992006557 - 2²³ = 983617949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992006551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496003278 + 496003279.

It is an arithmetic number, because the mean of its divisors is an integer number (496003279).

Almost surely, 2^992006557 is an apocalyptic number.

It is an amenable number.

992006557 is a deficient number, since it is larger than the sum of its proper divisors (1).

992006557 is an equidigital number, since it uses as much as digits as its factorization.

992006557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 992006557 is about 31496.1355883543. The cubic root of 992006557 is about 997.3283878447.

The spelling of 992006557 in words is "nine hundred ninety-two million, six thousand, five hundred fifty-seven".