1309996 has 6 divisors (see below), whose sum is σ = 2292500. Its totient is φ = 654996.

The previous prime is 1309963. The next prime is 1309999. The reversal of 1309996 is 6999031.

It is not an unprimeable number, because it can be changed into a prime (1309999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163746 + ... + 163753.

2^1309996 is an apocalyptic number.

It is an amenable number.

1309996 is a deficient number, since it is larger than the sum of its proper divisors (982504).

1309996 is a wasteful number, since it uses less digits than its factorization.

1309996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327503 (or 327501 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1309996 is about 1144.5505668165. The cubic root of 1309996 is about 109.4183067689.

The spelling of 1309996 in words is "one million, three hundred nine thousand, nine hundred ninety-six".