8920881 has 16 divisors (see below), whose sum is σ = 13316800. Its totient is φ = 5901984.

The previous prime is 8920867. The next prime is 8920889. The reversal of 8920881 is 1880298.

It is not a de Polignac number, because 8920881 - 2⁶ = 8920817 is a prime.

It is a super-2 number, since 2×8920881² = 159164235632322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8920889) 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, 2565 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (832300).

Almost surely, 2^8920881 is an apocalyptic number.

It is an amenable number.

8920881 is a deficient number, since it is larger than the sum of its proper divisors (4395919).

8920881 is a wasteful number, since it uses less digits than its factorization.

8920881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 8920881 is about 2986.7843912810. The cubic root of 8920881 is about 207.3970534967.

It can be divided in two parts, 8920 and 881, that added together give a square (9801 = 99²).

The spelling of 8920881 in words is "eight million, nine hundred twenty thousand, eight hundred eighty-one".