383854993 has 8 divisors (see below), whose sum is σ = 389951168. Its totient is φ = 377769744.

The previous prime is 383854973. The next prime is 383855009. The reversal of 383854993 is 399458383.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383854993 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 383854993.

It is not an unprimeable number, because it can be changed into a prime (383854973) 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 7 ways as a sum of consecutive naturals, for example, 95380 + ... + 99322.

It is an arithmetic number, because the mean of its divisors is an integer number (48743896).

Almost surely, 2^383854993 is an apocalyptic number.

It is an amenable number.

383854993 is a deficient number, since it is larger than the sum of its proper divisors (6096175).

383854993 is a wasteful number, since it uses less digits than its factorization.

383854993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463.

The product of its digits is 2799360, while the sum is 52.

The square root of 383854993 is about 19592.2176641645. The cubic root of 383854993 is about 726.7567342231.

The spelling of 383854993 in words is "three hundred eighty-three million, eight hundred fifty-four thousand, nine hundred ninety-three".