383456789 has 8 divisors (see below), whose sum is σ = 394197408. Its totient is φ = 372736080.

The previous prime is 383456783. The next prime is 383456791. The reversal of 383456789 is 987654383.

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

It is a cyclic number.

It is not a de Polignac number, because 383456789 - 2⁸ = 383456533 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 383456789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383456783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39554 + ... + 48284.

It is an arithmetic number, because the mean of its divisors is an integer number (49274676).

Almost surely, 2^383456789 is an apocalyptic number.

It is an amenable number.

383456789 is a deficient number, since it is larger than the sum of its proper divisors (10740619).

383456789 is a wasteful number, since it uses less digits than its factorization.

383456789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9955.

The product of its digits is 4354560, while the sum is 53.

The square root of 383456789 is about 19582.0527269232. The cubic root of 383456789 is about 726.5053393184.

The spelling of 383456789 in words is "three hundred eighty-three million, four hundred fifty-six thousand, seven hundred eighty-nine".