389684885 has 16 divisors (see below), whose sum is σ = 479001600. Its totient is φ = 304224960.

The previous prime is 389684879. The next prime is 389684891. The reversal of 389684885 is 588486983.

It is an interprime number because it is at equal distance from previous prime (389684879) and next prime (389684891).

It is not a de Polignac number, because 389684885 - 2²⁰ = 388636309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46766 + ... + 54464.

It is an arithmetic number, because the mean of its divisors is an integer number (29937600).

Almost surely, 2^389684885 is an apocalyptic number.

It is an amenable number.

389684885 is a deficient number, since it is larger than the sum of its proper divisors (89316715).

389684885 is a wasteful number, since it uses less digits than its factorization.

389684885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7948.

The product of its digits is 13271040, while the sum is 59.

The square root of 389684885 is about 19740.4378117609. The cubic root of 389684885 is about 730.4175287071.

The spelling of 389684885 in words is "three hundred eighty-nine million, six hundred eighty-four thousand, eight hundred eighty-five".