8878981 has 8 divisors (see below), whose sum is σ = 9431640. Its totient is φ = 8329728.

The previous prime is 8878979. The next prime is 8878997. The reversal of 8878981 is 1898788.

It can be written as a sum of positive squares in 4 ways, for example, as 5134756 + 3744225 = 2266^2 + 1935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8878981 - 2¹ = 8878979 is a prime.

It is a super-2 number, since 2×8878981² = 157672607196722, 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 (8878921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6315 + ... + 7591.

It is an arithmetic number, because the mean of its divisors is an integer number (1178955).

Almost surely, 2^8878981 is an apocalyptic number.

It is an amenable number.

8878981 is a deficient number, since it is larger than the sum of its proper divisors (552659).

8878981 is a wasteful number, since it uses less digits than its factorization.

8878981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its digits is 258048, while the sum is 49.

The square root of 8878981 is about 2979.7619032399. The cubic root of 8878981 is about 207.0718398304.

The spelling of 8878981 in words is "eight million, eight hundred seventy-eight thousand, nine hundred eighty-one".