8877981 has 8 divisors (see below), whose sum is σ = 13528384. Its totient is φ = 5073120.

The previous prime is 8877943. The next prime is 8877989. The reversal of 8877981 is 1897788.

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

It is not a de Polignac number, because 8877981 - 2¹⁴ = 8861597 is a prime.

It is a super-2 number, since 2×8877981² = 157637093272722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8877981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8877989) 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, 211360 + ... + 211401.

It is an arithmetic number, because the mean of its divisors is an integer number (1691048).

Almost surely, 2^8877981 is an apocalyptic number.

It is an amenable number.

8877981 is a deficient number, since it is larger than the sum of its proper divisors (4650403).

8877981 is a wasteful number, since it uses less digits than its factorization.

8877981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422771.

The product of its digits is 225792, while the sum is 48.

The square root of 8877981 is about 2979.5940998733. The cubic root of 8877981 is about 207.0640656795.

The spelling of 8877981 in words is "eight million, eight hundred seventy-seven thousand, nine hundred eighty-one".