992017111 has 2 divisors, whose sum is σ = 992017112. Its totient is φ = 992017110.

The previous prime is 992017073. The next prime is 992017199. The reversal of 992017111 is 111710299.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 992017111 - 2¹⁷ = 991886039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992027111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496008555 + 496008556.

It is an arithmetic number, because the mean of its divisors is an integer number (496008556).

Almost surely, 2^992017111 is an apocalyptic number.

992017111 is a deficient number, since it is larger than the sum of its proper divisors (1).

992017111 is an equidigital number, since it uses as much as digits as its factorization.

992017111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

The square root of 992017111 is about 31496.3031322725. The cubic root of 992017111 is about 997.3319247052.

The spelling of 992017111 in words is "nine hundred ninety-two million, seventeen thousand, one hundred eleven".