383671609 has 4 divisors (see below), whose sum is σ = 383927040. Its totient is φ = 383416180.

The previous prime is 383671591. The next prime is 383671649. The reversal of 383671609 is 906176383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 383671609 - 2⁵ = 383671577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383671649) 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, 125449 + ... + 128470.

It is an arithmetic number, because the mean of its divisors is an integer number (95981760).

Almost surely, 2^383671609 is an apocalyptic number.

It is an amenable number.

383671609 is a deficient number, since it is larger than the sum of its proper divisors (255431).

383671609 is a wasteful number, since it uses less digits than its factorization.

383671609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255430.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 383671609 is about 19587.5370835641. The cubic root of 383671609 is about 726.6409814963.

The spelling of 383671609 in words is "three hundred eighty-three million, six hundred seventy-one thousand, six hundred nine".