1398374903 has 2 divisors, whose sum is σ = 1398374904. Its totient is φ = 1398374902.

The previous prime is 1398374849. The next prime is 1398374917. The reversal of 1398374903 is 3094738931.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3094738931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1398374903 - 2⁶ = 1398374839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398374963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699187451 + 699187452.

It is an arithmetic number, because the mean of its divisors is an integer number (699187452).

Almost surely, 2^1398374903 is an apocalyptic number.

1398374903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398374903 is an equidigital number, since it uses as much as digits as its factorization.

1398374903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 1398374903 is about 37394.8512899838. The cubic root of 1398374903 is about 1118.2559225757.

The spelling of 1398374903 in words is "one billion, three hundred ninety-eight million, three hundred seventy-four thousand, nine hundred three".