1689164 has 6 divisors (see below), whose sum is σ = 2956044. Its totient is φ = 844580.

The previous prime is 1689113. The next prime is 1689167. The reversal of 1689164 is 4619861.

1689164 = 456² + 457² + ... + 463².

It is not an unprimeable number, because it can be changed into a prime (1689167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211142 + ... + 211149.

It is an arithmetic number, because the mean of its divisors is an integer number (492674).

2^1689164 is an apocalyptic number.

It is an amenable number.

1689164 is a deficient number, since it is larger than the sum of its proper divisors (1266880).

1689164 is a wasteful number, since it uses less digits than its factorization.

1689164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422295 (or 422293 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1689164 is about 1299.6784217644. The cubic root of 1689164 is about 119.0941984177.

The spelling of 1689164 in words is "one million, six hundred eighty-nine thousand, one hundred sixty-four".