1389576073 has 8 divisors (see below), whose sum is σ = 1535286528. Its totient is φ = 1250973504.

The previous prime is 1389576049. The next prime is 1389576091. The reversal of 1389576073 is 3706759831.

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-1389576073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389576043) 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 7 ways as a sum of consecutive naturals, for example, 1776561 + ... + 1777342.

It is an arithmetic number, because the mean of its divisors is an integer number (191910816).

Almost surely, 2^1389576073 is an apocalyptic number.

It is an amenable number.

1389576073 is a deficient number, since it is larger than the sum of its proper divisors (145710455).

1389576073 is a wasteful number, since it uses less digits than its factorization.

1389576073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553943.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 1389576073 is about 37277.0180271974. The cubic root of 1389576073 is about 1115.9055626057.

The spelling of 1389576073 in words is "one billion, three hundred eighty-nine million, five hundred seventy-six thousand, seventy-three".