389685558 has 8 divisors (see below), whose sum is σ = 779371128. Its totient is φ = 129895184.

The previous prime is 389685553. The next prime is 389685563. The reversal of 389685558 is 855586983.

It is an interprime number because it is at equal distance from previous prime (389685553) and next prime (389685563).

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

389685558 is an admirable number.

It is a super-3 number, since 3×389685558³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 389685498 and 389685507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389685553) 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, 32473791 + ... + 32473802.

It is an arithmetic number, because the mean of its divisors is an integer number (97421391).

Almost surely, 2^389685558 is an apocalyptic number.

389685558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389685558 is a wasteful number, since it uses less digits than its factorization.

389685558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64947598.

The product of its digits is 10368000, while the sum is 57.

The square root of 389685558 is about 19740.4548579814. The cubic root of 389685558 is about 730.4179491927.

The spelling of 389685558 in words is "three hundred eighty-nine million, six hundred eighty-five thousand, five hundred fifty-eight".