7561685 has 12 divisors (see below), whose sum is σ = 9641028. Its totient is φ = 5692416.

The previous prime is 7561681. The next prime is 7561691. The reversal of 7561685 is 5861657.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1868689 + 5692996 = 1367^2 + 2386^2 .

It is not a de Polignac number, because 7561685 - 2² = 7561681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7561681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172 + ... + 4061.

It is an arithmetic number, because the mean of its divisors is an integer number (803419).

Almost surely, 2^7561685 is an apocalyptic number.

It is an amenable number.

7561685 is a deficient number, since it is larger than the sum of its proper divisors (2079343).

7561685 is a wasteful number, since it uses less digits than its factorization.

7561685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272 (or 5255 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 7561685 is about 2749.8518141893. The cubic root of 7561685 is about 196.2785588687.

The spelling of 7561685 in words is "seven million, five hundred sixty-one thousand, six hundred eighty-five".