606637 has 4 divisors (see below), whose sum is σ = 608220. Its totient is φ = 605056.

The previous prime is 606607. The next prime is 606643. The reversal of 606637 is 736606.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 60516 + 546121 = 246^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 606637 - 2¹¹ = 604589 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 (606607) 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, 189 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (152055).

2⁶⁰⁶⁶³⁷ is an apocalyptic number.

It is an amenable number.

606637 is a deficient number, since it is larger than the sum of its proper divisors (1583).

606637 is an equidigital number, since it uses as much as digits as its factorization.

606637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 606637 is about 778.8690518951. The cubic root of 606637 is about 84.6531191942.

The spelling of 606637 in words is "six hundred six thousand, six hundred thirty-seven".