938861889 has 16 divisors (see below), whose sum is σ = 1437069312. Its totient is φ = 534084048.

The previous prime is 938861857. The next prime is 938861929. The reversal of 938861889 is 988168839.

It is a happy number.

It is not a de Polignac number, because 938861889 - 2⁵ = 938861857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (938061889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95559 + ... + 104924.

It is an arithmetic number, because the mean of its divisors is an integer number (89816832).

Almost surely, 2^938861889 is an apocalyptic number.

It is an amenable number.

938861889 is a deficient number, since it is larger than the sum of its proper divisors (498207423).

938861889 is a wasteful number, since it uses less digits than its factorization.

938861889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200716.

The product of its digits is 5971968, while the sum is 60.

The square root of 938861889 is about 30640.8532681451. The cubic root of 938861889 is about 979.1906023407.

The spelling of 938861889 in words is "nine hundred thirty-eight million, eight hundred sixty-one thousand, eight hundred eighty-nine".