168397003 has 2 divisors, whose sum is σ = 168397004. Its totient is φ = 168397002.

The previous prime is 168396973. The next prime is 168397013. The reversal of 168397003 is 300793861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168397003 - 2⁹ = 168396491 is a prime.

It is not a weakly prime, because it can be changed into another prime (168397013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84198501 + 84198502.

It is an arithmetic number, because the mean of its divisors is an integer number (84198502).

Almost surely, 2^168397003 is an apocalyptic number.

168397003 is a deficient number, since it is larger than the sum of its proper divisors (1).

168397003 is an equidigital number, since it uses as much as digits as its factorization.

168397003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 168397003 is about 12976.7870830957. The cubic root of 168397003 is about 552.2191366779.

The spelling of 168397003 in words is "one hundred sixty-eight million, three hundred ninety-seven thousand, three".