838557089 has 8 divisors (see below), whose sum is σ = 841428000. Its totient is φ = 835692256.

The previous prime is 838557053. The next prime is 838557091. The reversal of 838557089 is 980755838.

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 838557089 - 2¹⁶ = 838491553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 838557089.

It is not an unprimeable number, because it can be changed into a prime (838557019) 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, 558662 + ... + 560160.

It is an arithmetic number, because the mean of its divisors is an integer number (105178500).

Almost surely, 2^838557089 is an apocalyptic number.

It is an amenable number.

838557089 is a deficient number, since it is larger than the sum of its proper divisors (2870911).

838557089 is a wasteful number, since it uses less digits than its factorization.

838557089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The square root of 838557089 is about 28957.8502137158. The cubic root of 838557089 is about 942.9982314632.

The spelling of 838557089 in words is "eight hundred thirty-eight million, five hundred fifty-seven thousand, eighty-nine".