1389006651 has 16 divisors (see below), whose sum is σ = 1937553408. Its totient is φ = 884193600.

The previous prime is 1389006637. The next prime is 1389006659. The reversal of 1389006651 is 1566009831.

It is not a de Polignac number, because 1389006651 - 2⁶ = 1389006587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1389006659) 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, 114355 + ... + 125916.

It is an arithmetic number, because the mean of its divisors is an integer number (121097088).

Almost surely, 2^1389006651 is an apocalyptic number.

1389006651 is a deficient number, since it is larger than the sum of its proper divisors (548546757).

1389006651 is a wasteful number, since it uses less digits than its factorization.

1389006651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240362.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1389006651 is about 37269.3795360213. The cubic root of 1389006651 is about 1115.7531161141.

The spelling of 1389006651 in words is "one billion, three hundred eighty-nine million, six thousand, six hundred fifty-one".