7868161 has 16 divisors (see below), whose sum is σ = 9783936. Its totient is φ = 6172416.

The previous prime is 7868153. The next prime is 7868191. The reversal of 7868161 is 1618687.

7868161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7868161 - 2³ = 7868153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an Ulam number.

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 7868161.

It is not an unprimeable number, because it can be changed into a prime (7868111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3510 + ... + 5296.

It is an arithmetic number, because the mean of its divisors is an integer number (611496).

Almost surely, 2^7868161 is an apocalyptic number.

It is an amenable number.

7868161 is a deficient number, since it is larger than the sum of its proper divisors (1915775).

7868161 is a wasteful number, since it uses less digits than its factorization.

7868161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

The product of its digits is 16128, while the sum is 37.

The square root of 7868161 is about 2805.0242423195. The cubic root of 7868161 is about 198.8952505458.

The spelling of 7868161 in words is "seven million, eight hundred sixty-eight thousand, one hundred sixty-one".