389718047 has 8 divisors (see below), whose sum is σ = 415116576. Its totient is φ = 364594432.

The previous prime is 389718041. The next prime is 389718061. The reversal of 389718047 is 740817983.

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 389718047 - 2²⁰ = 388669471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389717992 and 389718010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389718041) 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, 65798 + ... + 71475.

It is an arithmetic number, because the mean of its divisors is an integer number (51889572).

Almost surely, 2^389718047 is an apocalyptic number.

389718047 is a deficient number, since it is larger than the sum of its proper divisors (25398529).

389718047 is a wasteful number, since it uses less digits than its factorization.

389718047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137457.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 389718047 is about 19741.2777448675. The cubic root of 389718047 is about 730.4382475152.

The spelling of 389718047 in words is "three hundred eighty-nine million, seven hundred eighteen thousand, forty-seven".