8379881 has 4 divisors (see below), whose sum is σ = 8387664. Its totient is φ = 8372100.

The previous prime is 8379863. The next prime is 8379887. The reversal of 8379881 is 1889738.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8379881 - 2¹⁰ = 8378857 is a prime.

It is a super-2 number, since 2×8379881² = 140444811148322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8379887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (2096916).

Almost surely, 2^8379881 is an apocalyptic number.

It is an amenable number.

8379881 is a deficient number, since it is larger than the sum of its proper divisors (7783).

8379881 is a wasteful number, since it uses less digits than its factorization.

8379881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7782.

The product of its digits is 96768, while the sum is 44.

The square root of 8379881 is about 2894.8024112191. The cubic root of 8379881 is about 203.1168489352.

The spelling of 8379881 in words is "eight million, three hundred seventy-nine thousand, eight hundred eighty-one".