1389587006 has 8 divisors (see below), whose sum is σ = 2135219184. Its totient is φ = 677847280.

The previous prime is 1389586999. The next prime is 1389587033. The reversal of 1389587006 is 6007859831.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8473010 + ... + 8473173.

It is an arithmetic number, because the mean of its divisors is an integer number (266902398).

Almost surely, 2^1389587006 is an apocalyptic number.

1389587006 is a deficient number, since it is larger than the sum of its proper divisors (745632178).

1389587006 is a wasteful number, since it uses less digits than its factorization.

1389587006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16946226.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1389587006 is about 37277.1646722226. The cubic root of 1389587006 is about 1115.9084891970.

The spelling of 1389587006 in words is "one billion, three hundred eighty-nine million, five hundred eighty-seven thousand, six".