1606607 has 4 divisors (see below), whose sum is σ = 1622616. Its totient is φ = 1590600.

The previous prime is 1606603. The next prime is 1606639. The reversal of 1606607 is 7066061.

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

It is a cyclic number.

It is not a de Polignac number, because 1606607 - 2² = 1606603 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 (1606603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (405654).

2^1606607 is an apocalyptic number.

1606607 is a deficient number, since it is larger than the sum of its proper divisors (16009).

1606607 is a wasteful number, since it uses less digits than its factorization.

1606607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16008.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1606607 is about 1267.5200195658. The cubic root of 1606607 is about 117.1214799806.

The spelling of 1606607 in words is "one million, six hundred six thousand, six hundred seven".