938534789 has 4 divisors (see below), whose sum is σ = 938937024. Its totient is φ = 938132556.

The previous prime is 938534783. The next prime is 938534791. The reversal of 938534789 is 987435839.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938534789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938534783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197597 + ... + 202290.

It is an arithmetic number, because the mean of its divisors is an integer number (234734256).

Almost surely, 2^938534789 is an apocalyptic number.

It is an amenable number.

938534789 is a deficient number, since it is larger than the sum of its proper divisors (402235).

938534789 is a wasteful number, since it uses less digits than its factorization.

938534789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402234.

The product of its digits is 6531840, while the sum is 56.

The square root of 938534789 is about 30635.5151580645. The cubic root of 938534789 is about 979.0768722831.

The spelling of 938534789 in words is "nine hundred thirty-eight million, five hundred thirty-four thousand, seven hundred eighty-nine".