383917923 has 12 divisors (see below), whose sum is σ = 554722168. Its totient is φ = 255864960.

The previous prime is 383917907. The next prime is 383917927. The reversal of 383917923 is 329719383.

It is not a de Polignac number, because 383917923 - 2⁴ = 383917907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383917927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42963 + ... + 51123.

Almost surely, 2^383917923 is an apocalyptic number.

383917923 is a deficient number, since it is larger than the sum of its proper divisors (170804245).

383917923 is a wasteful number, since it uses less digits than its factorization.

383917923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13394 (or 13391 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 383917923 is about 19593.8235931632. The cubic root of 383917923 is about 726.7964473987.

The spelling of 383917923 in words is "three hundred eighty-three million, nine hundred seventeen thousand, nine hundred twenty-three".