389447588 has 6 divisors (see below), whose sum is σ = 681533286. Its totient is φ = 194723792.

The previous prime is 389447581. The next prime is 389447599. The reversal of 389447588 is 885744983.

It can be written as a sum of positive squares in only one way, i.e., 293368384 + 96079204 = 17128^2 + 9802^2 .

It is not an unprimeable number, because it can be changed into a prime (389447581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48680945 + ... + 48680952.

It is an arithmetic number, because the mean of its divisors is an integer number (113588881).

Almost surely, 2^389447588 is an apocalyptic number.

It is an amenable number.

389447588 is a deficient number, since it is larger than the sum of its proper divisors (292085698).

389447588 is a wasteful number, since it uses less digits than its factorization.

389447588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97361901 (or 97361899 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The square root of 389447588 is about 19734.4264674705. The cubic root of 389447588 is about 730.2692370241.

The spelling of 389447588 in words is "three hundred eighty-nine million, four hundred forty-seven thousand, five hundred eighty-eight".