1071685 has 8 divisors (see below), whose sum is σ = 1342080. Its totient is φ = 819984.

The previous prime is 1071683. The next prime is 1071703. The reversal of 1071685 is 5861701.

It is a happy number.

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 1071685 - 2¹ = 1071683 is a prime.

It is a super-2 number, since 2×1071685² = 2297017478450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071683) 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, 4545 + ... + 4774.

It is an arithmetic number, because the mean of its divisors is an integer number (167760).

2^1071685 is an apocalyptic number.

It is an amenable number.

1071685 is a deficient number, since it is larger than the sum of its proper divisors (270395).

1071685 is an equidigital number, since it uses as much as digits as its factorization.

1071685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9347.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1071685 is about 1035.2221983710. Note that the first 3 decimals coincide. The cubic root of 1071685 is about 102.3345735319.

It can be divided in two parts, 10716 and 85, that added together give a palindrome (10801).

The spelling of 1071685 in words is "one million, seventy-one thousand, six hundred eighty-five".