1664098 has 8 divisors (see below), whose sum is σ = 2531520. Its totient is φ = 820260.

The previous prime is 1664083. The next prime is 1664101. The reversal of 1664098 is 8904661.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5718 + ... + 6001.

It is an arithmetic number, because the mean of its divisors is an integer number (316440).

2^1664098 is an apocalyptic number.

1664098 is a deficient number, since it is larger than the sum of its proper divisors (867422).

1664098 is a wasteful number, since it uses less digits than its factorization.

1664098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11792.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1664098 is about 1289.9992248060. Note that the first 3 decimals coincide. The cubic root of 1664098 is about 118.5021690097.

The spelling of 1664098 in words is "one million, six hundred sixty-four thousand, ninety-eight".