7685161 has 8 divisors (see below), whose sum is σ = 8408448. Its totient is φ = 6966000.

The previous prime is 7685149. The next prime is 7685189. The reversal of 7685161 is 1615867.

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 7685161 - 2⁵ = 7685129 is a prime.

It is a pancake number, because a pancake can be divided into 7685161 parts by 3920 straight cuts.

It is a Duffinian number.

7685161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7685141) 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, 3931 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (1051056).

Almost surely, 2^7685161 is an apocalyptic number.

It is an amenable number.

7685161 is a deficient number, since it is larger than the sum of its proper divisors (723287).

7685161 is a wasteful number, since it uses less digits than its factorization.

7685161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063.

The product of its digits is 10080, while the sum is 34.

The square root of 7685161 is about 2772.2122934581. The cubic root of 7685161 is about 197.3411509133.

It can be divided in two parts, 768 and 5161, that added together give a square (5929 = 77²).

The spelling of 7685161 in words is "seven million, six hundred eighty-five thousand, one hundred sixty-one".