997471603 has 2 divisors, whose sum is σ = 997471604. Its totient is φ = 997471602.

The previous prime is 997471577. The next prime is 997471609. The reversal of 997471603 is 306174799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997471603 - 2⁹ = 997471091 is a prime.

It is not a weakly prime, because it can be changed into another prime (997471609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498735801 + 498735802.

It is an arithmetic number, because the mean of its divisors is an integer number (498735802).

Almost surely, 2^997471603 is an apocalyptic number.

997471603 is a deficient number, since it is larger than the sum of its proper divisors (1).

997471603 is an equidigital number, since it uses as much as digits as its factorization.

997471603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 997471603 is about 31582.7738332148. The cubic root of 997471603 is about 999.1564896904.

The spelling of 997471603 in words is "nine hundred ninety-seven million, four hundred seventy-one thousand, six hundred three".