389155 has 8 divisors (see below), whose sum is σ = 502992. Its totient is φ = 287328.

The previous prime is 389149. The next prime is 389161. The reversal of 389155 is 551983.

It is an interprime number because it is at equal distance from previous prime (389149) and next prime (389161).

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 389155 - 2⁷ = 389027 is a prime.

It is a super-2 number, since 2×389155² = 302883228050, which contains 22 as substring.

It is a Duffinian number.

389155 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929 + ... + 3058.

It is an arithmetic number, because the mean of its divisors is an integer number (62874).

2³⁸⁹¹⁵⁵ is an apocalyptic number.

389155 is a deficient number, since it is larger than the sum of its proper divisors (113837).

389155 is a wasteful number, since it uses less digits than its factorization.

389155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005.

The product of its digits is 5400, while the sum is 31.

The square root of 389155 is about 623.8228915325. The cubic root of 389155 is about 73.0086309930.

The spelling of 389155 in words is "three hundred eighty-nine thousand, one hundred fifty-five".