1209606 has 12 divisors (see below), whose sum is σ = 2424612. Its totient is φ = 402304.

The previous prime is 1209587. The next prime is 1209617. The reversal of 1209606 is 6069021.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2470 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (202051).

2^1209606 is an apocalyptic number.

1209606 is an abundant number, since it is smaller than the sum of its proper divisors (1215006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1209606 is an frugal number, since it uses more digits than its factorization.

1209606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1209606 is about 1099.8208945096. The cubic root of 1209606 is about 106.5486563802.

Multiplying 1209606 by its sum of digits (24), we get a square (29030544 = 5388²).

The spelling of 1209606 in words is "one million, two hundred nine thousand, six hundred six".