1664102 has 8 divisors (see below), whose sum is σ = 2723112. Its totient is φ = 756400.

The previous prime is 1664101. The next prime is 1664123. The reversal of 1664102 is 2014661.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37799 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (340389).

2^1664102 is an apocalyptic number.

1664102 is a deficient number, since it is larger than the sum of its proper divisors (1059010).

1664102 is a wasteful number, since it uses less digits than its factorization.

1664102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75654.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1664102 is about 1290.0007751936. Note that the first 3 decimals coincide. The cubic root of 1664102 is about 118.5022639576.

Adding to 1664102 its reverse (2014661), we get a palindrome (3678763).

The spelling of 1664102 in words is "one million, six hundred sixty-four thousand, one hundred two".