383481893 has 4 divisors (see below), whose sum is σ = 383684268. Its totient is φ = 383279520.

The previous prime is 383481841. The next prime is 383481907. The reversal of 383481893 is 398184383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318872449 + 64609444 = 17857^2 + 8038^2 .

It is a cyclic number.

It is not a de Polignac number, because 383481893 - 2¹⁶ = 383416357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383481193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98318 + ... + 102143.

It is an arithmetic number, because the mean of its divisors is an integer number (95921067).

Almost surely, 2^383481893 is an apocalyptic number.

It is an amenable number.

383481893 is a deficient number, since it is larger than the sum of its proper divisors (202375).

383481893 is a wasteful number, since it uses less digits than its factorization.

383481893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202374.

The product of its digits is 497664, while the sum is 47.

The square root of 383481893 is about 19582.6937115403. The cubic root of 383481893 is about 726.5211931622.

The spelling of 383481893 in words is "three hundred eighty-three million, four hundred eighty-one thousand, eight hundred ninety-three".