8240881 has 4 divisors (see below), whose sum is σ = 8990064. Its totient is φ = 7491700.

The previous prime is 8240879. The next prime is 8240909. The reversal of 8240881 is 1880428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8240881 - 2¹ = 8240879 is a prime.

It is a super-2 number, since 2×8240881² = 135824239312322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8240861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374575 + ... + 374596.

It is an arithmetic number, because the mean of its divisors is an integer number (2247516).

Almost surely, 2^8240881 is an apocalyptic number.

It is an amenable number.

8240881 is a deficient number, since it is larger than the sum of its proper divisors (749183).

8240881 is a wasteful number, since it uses less digits than its factorization.

8240881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749182.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 8240881 is about 2870.6934702263. The cubic root of 8240881 is about 201.9875249624.

The spelling of 8240881 in words is "eight million, two hundred forty thousand, eight hundred eighty-one".