938890889 has 8 divisors (see below), whose sum is σ = 981576960. Its totient is φ = 898057908.

The previous prime is 938890877. The next prime is 938890903. The reversal of 938890889 is 988098839.

It is not a de Polignac number, because 938890889 - 2⁸ = 938890633 is a prime.

It is a super-2 number, since 2×938890889² = 1763032202894420642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938890819) 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, 26417 + ... + 50750.

It is an arithmetic number, because the mean of its divisors is an integer number (122697120).

Almost surely, 2^938890889 is an apocalyptic number.

It is an amenable number.

938890889 is a deficient number, since it is larger than the sum of its proper divisors (42686071).

938890889 is an frugal number, since it uses more digits than its factorization.

938890889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77236 (or 77190 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 62.

The square root of 938890889 is about 30641.3264889104. The cubic root of 938890889 is about 979.2006841342.

The spelling of 938890889 in words is "nine hundred thirty-eight million, eight hundred ninety thousand, eight hundred eighty-nine".