389738497 has 8 divisors (see below), whose sum is σ = 403201512. Its totient is φ = 376464000.

The previous prime is 389738477. The next prime is 389738513. The reversal of 389738497 is 794837983.

It can be written as a sum of positive squares in 4 ways, for example, as 66601921 + 323136576 = 8161^2 + 17976^2 .

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 389738497 - 2²³ = 381349889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389738467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42918 + ... + 51199.

It is an arithmetic number, because the mean of its divisors is an integer number (50400189).

Almost surely, 2^389738497 is an apocalyptic number.

It is an amenable number.

389738497 is a deficient number, since it is larger than the sum of its proper divisors (13463015).

389738497 is a wasteful number, since it uses less digits than its factorization.

389738497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94259.

The product of its digits is 9144576, while the sum is 58.

The square root of 389738497 is about 19741.7956883360. The cubic root of 389738497 is about 730.4510235901.

The spelling of 389738497 in words is "three hundred eighty-nine million, seven hundred thirty-eight thousand, four hundred ninety-seven".