7886881 has 8 divisors (see below), whose sum is σ = 8360000. Its totient is φ = 7419600.

The previous prime is 7886867. The next prime is 7886899. The reversal of 7886881 is 1886887.

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

It is a cyclic number.

It is not a de Polignac number, because 7886881 - 2¹⁷ = 7755809 is a prime.

It is a super-2 number, since 2×7886881² = 124405783816322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7886821) 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, 1495 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (1045000).

Almost surely, 2^7886881 is an apocalyptic number.

It is an amenable number.

7886881 is a deficient number, since it is larger than the sum of its proper divisors (473119).

7886881 is a wasteful number, since it uses less digits than its factorization.

7886881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919.

The product of its digits is 172032, while the sum is 46.

The square root of 7886881 is about 2808.3591294562. The cubic root of 7886881 is about 199.0528634084.

The spelling of 7886881 in words is "seven million, eight hundred eighty-six thousand, eight hundred eighty-one".