7881168 has 20 divisors (see below), whose sum is σ = 20359808. Its totient is φ = 2627040.

The previous prime is 7881163. The next prime is 7881173. The reversal of 7881168 is 8611887.

It is an interprime number because it is at equal distance from previous prime (7881163) and next prime (7881173).

It is a super-2 number, since 2×7881168² = 124225618088448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881163) 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, 82048 + ... + 82143.

Almost surely, 2^7881168 is an apocalyptic number.

It is an amenable number.

7881168 is an abundant number, since it is smaller than the sum of its proper divisors (12478640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7881168 is a wasteful number, since it uses less digits than its factorization.

7881168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164202 (or 164196 counting only the distinct ones).

The product of its digits is 21504, while the sum is 39.

The square root of 7881168 is about 2807.3418032010. The cubic root of 7881168 is about 199.0047893261.

The spelling of 7881168 in words is "seven million, eight hundred eighty-one thousand, one hundred sixty-eight".