1389760423 has 2 divisors, whose sum is σ = 1389760424. Its totient is φ = 1389760422.

The previous prime is 1389760391. The next prime is 1389760429. The reversal of 1389760423 is 3240679831.

It is a strong prime.

It is an emirp because it is prime and its reverse (3240679831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1389760423 - 2⁵ = 1389760391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1389760423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389760429) 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, 694880211 + 694880212.

It is an arithmetic number, because the mean of its divisors is an integer number (694880212).

Almost surely, 2^1389760423 is an apocalyptic number.

1389760423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389760423 is an equidigital number, since it uses as much as digits as its factorization.

1389760423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1389760423 is about 37279.4906483444. The cubic root of 1389760423 is about 1115.9549081334.

The spelling of 1389760423 in words is "one billion, three hundred eighty-nine million, seven hundred sixty thousand, four hundred twenty-three".