1711985 has 16 divisors (see below), whose sum is σ = 2374272. Its totient is φ = 1171200.

The previous prime is 1711981. The next prime is 1711993. The reversal of 1711985 is 5891171.

It is not a de Polignac number, because 1711985 - 2² = 1711981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1711981) 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, 20 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (148392).

2^1711985 is an apocalyptic number.

It is an amenable number.

1711985 is a deficient number, since it is larger than the sum of its proper divisors (662287).

1711985 is a wasteful number, since it uses less digits than its factorization.

1711985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its digits is 2520, while the sum is 32.

The square root of 1711985 is about 1308.4284466489. The cubic root of 1711985 is about 119.6281312112.

The spelling of 1711985 in words is "one million, seven hundred eleven thousand, nine hundred eighty-five".