1389607975 has 24 divisors (see below), whose sum is σ = 1970672480. Its totient is φ = 952197120.

The previous prime is 1389607937. The next prime is 1389607979. The reversal of 1389607975 is 5797069831.

1389607975 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1389607975 - 2²⁹ = 852737063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389607979) 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 23 ways as a sum of consecutive naturals, for example, 469099 + ... + 472051.

Almost surely, 2^1389607975 is an apocalyptic number.

1389607975 is a deficient number, since it is larger than the sum of its proper divisors (581064505).

1389607975 is a wasteful number, since it uses less digits than its factorization.

1389607975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659 (or 5654 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

The square root of 1389607975 is about 37277.4459291406. The cubic root of 1389607975 is about 1115.9141022238.

The spelling of 1389607975 in words is "one billion, three hundred eighty-nine million, six hundred seven thousand, nine hundred seventy-five".