1389471567 has 16 divisors (see below), whose sum is σ = 2036969472. Its totient is φ = 835470720.

The previous prime is 1389471533. The next prime is 1389471581. The reversal of 1389471567 is 7651749831.

It is a happy number.

It is not a de Polignac number, because 1389471567 - 2¹⁰ = 1389470543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389481567) 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 15 ways as a sum of consecutive naturals, for example, 161578 + ... + 169959.

It is an arithmetic number, because the mean of its divisors is an integer number (127310592).

Almost surely, 2^1389471567 is an apocalyptic number.

1389471567 is a deficient number, since it is larger than the sum of its proper divisors (647497905).

1389471567 is a wasteful number, since it uses less digits than its factorization.

1389471567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331678.

The product of its digits is 1270080, while the sum is 51.

The square root of 1389471567 is about 37275.6162524511. The cubic root of 1389471567 is about 1115.8775872271.

The spelling of 1389471567 in words is "one billion, three hundred eighty-nine million, four hundred seventy-one thousand, five hundred sixty-seven".