385726889 has 8 divisors (see below), whose sum is σ = 409264128. Its totient is φ = 362283840.

The previous prime is 385726867. The next prime is 385726897. The reversal of 385726889 is 988627583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385726889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385726819) 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 7 ways as a sum of consecutive naturals, for example, 15017 + ... + 31574.

It is an arithmetic number, because the mean of its divisors is an integer number (51158016).

Almost surely, 2^385726889 is an apocalyptic number.

It is an amenable number.

385726889 is a deficient number, since it is larger than the sum of its proper divisors (23537239).

385726889 is a wasteful number, since it uses less digits than its factorization.

385726889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47095.

The product of its digits is 5806080, while the sum is 56.

The square root of 385726889 is about 19639.9309825671. The cubic root of 385726889 is about 727.9361792712.

The spelling of 385726889 in words is "three hundred eighty-five million, seven hundred twenty-six thousand, eight hundred eighty-nine".