8938881 has 48 divisors (see below), whose sum is σ = 15974400. Its totient is φ = 4704480.

The previous prime is 8938871. The next prime is 8938901. The reversal of 8938881 is 1888398.

8938881 = 151² + 152² + ... + 311².

It is not a de Polignac number, because 8938881 - 2⁵ = 8938849 is a prime.

It is a super-2 number, since 2×8938881² = 159807187064322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8938801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44820 + ... + 45018.

It is an arithmetic number, because the mean of its divisors is an integer number (332800).

Almost surely, 2^8938881 is an apocalyptic number.

It is an amenable number.

8938881 is a deficient number, since it is larger than the sum of its proper divisors (7035519).

8938881 is a wasteful number, since it uses less digits than its factorization.

8938881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 8938881 is about 2989.7961468970. The cubic root of 8938881 is about 207.5364507504.

The spelling of 8938881 in words is "eight million, nine hundred thirty-eight thousand, eight hundred eighty-one".