1389320711 has 8 divisors (see below), whose sum is σ = 1425133248. Its totient is φ = 1353600000.

The previous prime is 1389320701. The next prime is 1389320741. The reversal of 1389320711 is 1170239831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389320711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389320701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8231 + ... + 53351.

It is an arithmetic number, because the mean of its divisors is an integer number (178141656).

Almost surely, 2^1389320711 is an apocalyptic number.

1389320711 is a deficient number, since it is larger than the sum of its proper divisors (35812537).

1389320711 is an equidigital number, since it uses as much as digits as its factorization.

1389320711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45913.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1389320711 is about 37273.5926763171. The cubic root of 1389320711 is about 1115.8372018686.

The spelling of 1389320711 in words is "one billion, three hundred eighty-nine million, three hundred twenty thousand, seven hundred eleven".