383428559 has 4 divisors (see below), whose sum is σ = 384162216. Its totient is φ = 382694904.

The previous prime is 383428547. The next prime is 383428589. The reversal of 383428559 is 955824383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955824383 = 47 ⋅20336689.

It is a cyclic number.

It is not a de Polignac number, because 383428559 - 2²⁰ = 382379983 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 (383428519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366044 + ... + 367089.

It is an arithmetic number, because the mean of its divisors is an integer number (96040554).

Almost surely, 2^383428559 is an apocalyptic number.

383428559 is a deficient number, since it is larger than the sum of its proper divisors (733657).

383428559 is an equidigital number, since it uses as much as digits as its factorization.

383428559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733656.

The product of its digits is 1036800, while the sum is 47.

The square root of 383428559 is about 19581.3319005628. The cubic root of 383428559 is about 726.4875104960.

The spelling of 383428559 in words is "three hundred eighty-three million, four hundred twenty-eight thousand, five hundred fifty-nine".