1387898323 has 8 divisors (see below), whose sum is σ = 1601570048. Its totient is φ = 1178076744.

The previous prime is 1387898321. The next prime is 1387898341. The reversal of 1387898323 is 3238987831.

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

It is a cyclic number.

It is not a de Polignac number, because 1387898323 - 2¹ = 1387898321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387898321) 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, 961761 + ... + 963202.

It is an arithmetic number, because the mean of its divisors is an integer number (200196256).

Almost surely, 2^1387898323 is an apocalyptic number.

1387898323 is a deficient number, since it is larger than the sum of its proper divisors (213671725).

1387898323 is a wasteful number, since it uses less digits than its factorization.

1387898323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925073.

The product of its digits is 1741824, while the sum is 52.

The square root of 1387898323 is about 37254.5074185661. The cubic root of 1387898323 is about 1115.4562734085.

The spelling of 1387898323 in words is "one billion, three hundred eighty-seven million, eight hundred ninety-eight thousand, three hundred twenty-three".