997473083 has 2 divisors, whose sum is σ = 997473084. Its totient is φ = 997473082.

The previous prime is 997473053. The next prime is 997473109. The reversal of 997473083 is 380374799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997473083 - 2¹² = 997468987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (997473053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498736541 + 498736542.

It is an arithmetic number, because the mean of its divisors is an integer number (498736542).

Almost surely, 2^997473083 is an apocalyptic number.

997473083 is a deficient number, since it is larger than the sum of its proper divisors (1).

997473083 is an equidigital number, since it uses as much as digits as its factorization.

997473083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 997473083 is about 31582.7972637004. The cubic root of 997473083 is about 999.1569838568.

The spelling of 997473083 in words is "nine hundred ninety-seven million, four hundred seventy-three thousand, eighty-three".