1608973 has 4 divisors (see below), whose sum is σ = 1619008. Its totient is φ = 1598940.

The previous prime is 1608941. The next prime is 1608979. The reversal of 1608973 is 3798061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3798061 = 43 ⋅88327.

It is a cyclic number.

It is not a de Polignac number, because 1608973 - 2⁵ = 1608941 is a prime.

It is a super-2 number, since 2×1608973² = 5177588229458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608979) 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, 4773 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (404752).

2^1608973 is an apocalyptic number.

It is an amenable number.

1608973 is a deficient number, since it is larger than the sum of its proper divisors (10035).

1608973 is an equidigital number, since it uses as much as digits as its factorization.

1608973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1608973 is about 1268.4529947933. The cubic root of 1608973 is about 117.1789454970.

The spelling of 1608973 in words is "one million, six hundred eight thousand, nine hundred seventy-three".