399748603 has 2 divisors, whose sum is σ = 399748604. Its totient is φ = 399748602.

The previous prime is 399748561. The next prime is 399748637. The reversal of 399748603 is 306847993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 399748603 - 2⁹ = 399748091 is a prime.

It is not a weakly prime, because it can be changed into another prime (399748103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199874301 + 199874302.

It is an arithmetic number, because the mean of its divisors is an integer number (199874302).

Almost surely, 2^399748603 is an apocalyptic number.

399748603 is a deficient number, since it is larger than the sum of its proper divisors (1).

399748603 is an equidigital number, since it uses as much as digits as its factorization.

399748603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 399748603 is about 19993.7140871825. The cubic root of 399748603 is about 736.6519083012.

The spelling of 399748603 in words is "three hundred ninety-nine million, seven hundred forty-eight thousand, six hundred three".