1398111367 has 4 divisors (see below), whose sum is σ = 1398343176. Its totient is φ = 1397879560.

The previous prime is 1398111359. The next prime is 1398111389. The reversal of 1398111367 is 7631118931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1398111367 - 2³ = 1398111359 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398111347) 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 in 3 ways as a sum of consecutive naturals, for example, 106609 + ... + 119002.

It is an arithmetic number, because the mean of its divisors is an integer number (349585794).

Almost surely, 2^1398111367 is an apocalyptic number.

1398111367 is a deficient number, since it is larger than the sum of its proper divisors (231809).

1398111367 is an equidigital number, since it uses as much as digits as its factorization.

1398111367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231808.

The product of its digits is 27216, while the sum is 40.

The square root of 1398111367 is about 37391.3274303013. The cubic root of 1398111367 is about 1118.1856697875.

The spelling of 1398111367 in words is "one billion, three hundred ninety-eight million, one hundred eleven thousand, three hundred sixty-seven".