1161685 has 8 divisors (see below), whose sum is σ = 1593216. Its totient is φ = 796560.

The previous prime is 1161683. The next prime is 1161691. The reversal of 1161685 is 5861611.

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

It is not a de Polignac number, because 1161685 - 2¹ = 1161683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161683) 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, 16561 + ... + 16630.

It is an arithmetic number, because the mean of its divisors is an integer number (199152).

2^1161685 is an apocalyptic number.

It is an amenable number.

1161685 is a deficient number, since it is larger than the sum of its proper divisors (431531).

1161685 is an equidigital number, since it uses as much as digits as its factorization.

1161685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33203.

The product of its digits is 1440, while the sum is 28.

The square root of 1161685 is about 1077.8149191768. The cubic root of 1161685 is about 105.1226080980.

The spelling of 1161685 in words is "one million, one hundred sixty-one thousand, six hundred eighty-five".