997116103 has 2 divisors, whose sum is σ = 997116104. Its totient is φ = 997116102.

The previous prime is 997116061. The next prime is 997116163. The reversal of 997116103 is 301611799.

It is a weak prime.

It is an emirp because it is prime and its reverse (301611799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997116103 - 2⁹ = 997115591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997116163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498558051 + 498558052.

It is an arithmetic number, because the mean of its divisors is an integer number (498558052).

Almost surely, 2^997116103 is an apocalyptic number.

997116103 is a deficient number, since it is larger than the sum of its proper divisors (1).

997116103 is an equidigital number, since it uses as much as digits as its factorization.

997116103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 997116103 is about 31577.1452636238. The cubic root of 997116103 is about 999.0377754208.

The spelling of 997116103 in words is "nine hundred ninety-seven million, one hundred sixteen thousand, one hundred three".