1384672657 has 16 divisors (see below), whose sum is σ = 1496880000. Its totient is φ = 1276933504.

The previous prime is 1384672643. The next prime is 1384672673. The reversal of 1384672657 is 7562764831.

It is not a de Polignac number, because 1384672657 - 2¹⁹ = 1384148369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1384672657.

It is not an unprimeable number, because it can be changed into a prime (1384672637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698694 + ... + 700672.

It is an arithmetic number, because the mean of its divisors is an integer number (93555000).

Almost surely, 2^1384672657 is an apocalyptic number.

It is an amenable number.

1384672657 is a deficient number, since it is larger than the sum of its proper divisors (112207343).

1384672657 is a wasteful number, since it uses less digits than its factorization.

1384672657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its digits is 1693440, while the sum is 49.

The square root of 1384672657 is about 37211.1899433490. The cubic root of 1384672657 is about 1114.5914452951.

It can be divided in two parts, 1384672 and 657, that added together give a square (1385329 = 1177²).

The spelling of 1384672657 in words is "one billion, three hundred eighty-four million, six hundred seventy-two thousand, six hundred fifty-seven".