1606973 has 4 divisors (see below), whose sum is σ = 1621308. Its totient is φ = 1592640.

The previous prime is 1606967. The next prime is 1606981. The reversal of 1606973 is 3796061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 444889 + 1162084 = 667^2 + 1078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606973 - 2⁶ = 1606909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606273) 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, 6998 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (405327).

2^1606973 is an apocalyptic number.

It is an amenable number.

1606973 is a deficient number, since it is larger than the sum of its proper divisors (14335).

1606973 is a wasteful number, since it uses less digits than its factorization.

1606973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14334.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1606973 is about 1267.6643877620. The cubic root of 1606973 is about 117.1303730924.

The spelling of 1606973 in words is "one million, six hundred six thousand, nine hundred seventy-three".