1383814857 has 8 divisors (see below), whose sum is σ = 1849197600. Its totient is φ = 920487680.

The previous prime is 1383814847. The next prime is 1383814879. The reversal of 1383814857 is 7584183831.

It is a happy number.

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 1383814857 - 2⁶ = 1383814793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1383814847) 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, 512319 + ... + 515012.

It is an arithmetic number, because the mean of its divisors is an integer number (231149700).

Almost surely, 2^1383814857 is an apocalyptic number.

It is an amenable number.

1383814857 is a deficient number, since it is larger than the sum of its proper divisors (465382743).

1383814857 is a wasteful number, since it uses less digits than its factorization.

1383814857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027783.

The product of its digits is 645120, while the sum is 48.

The square root of 1383814857 is about 37199.6620549166. The cubic root of 1383814857 is about 1114.3612358812.

The spelling of 1383814857 in words is "one billion, three hundred eighty-three million, eight hundred fourteen thousand, eight hundred fifty-seven".