1691014 has 12 divisors (see below), whose sum is σ = 2747196. Its totient is φ = 780312.

The previous prime is 1691003. The next prime is 1691023. The reversal of 1691014 is 4101961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2164 + ... + 2839.

It is an arithmetic number, because the mean of its divisors is an integer number (228933).

2^1691014 is an apocalyptic number.

1691014 is a deficient number, since it is larger than the sum of its proper divisors (1056182).

1691014 is a wasteful number, since it uses less digits than its factorization.

1691014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1691014 is about 1300.3899415175. The cubic root of 1691014 is about 119.1376605252.

Adding to 1691014 its reverse (4101961), we get a palindrome (5792975).

The spelling of 1691014 in words is "one million, six hundred ninety-one thousand, fourteen".