1664414 has 8 divisors (see below), whose sum is σ = 2534088. Its totient is φ = 819720.

The previous prime is 1664407. The next prime is 1664417. The reversal of 1664414 is 4144661.

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 (1664417) 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, 6077 + ... + 6344.

It is an arithmetic number, because the mean of its divisors is an integer number (316761).

2^1664414 is an apocalyptic number.

1664414 is a deficient number, since it is larger than the sum of its proper divisors (869674).

1664414 is a wasteful number, since it uses less digits than its factorization.

1664414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490.

The product of its digits is 2304, while the sum is 26.

The square root of 1664414 is about 1290.1216996857. The cubic root of 1664414 is about 118.5096694324.

The spelling of 1664414 in words is "one million, six hundred sixty-four thousand, four hundred fourteen".