1217323793 has 16 divisors (see below), whose sum is σ = 1401477120. Its totient is φ = 1035758400.

The previous prime is 1217323739. The next prime is 1217323799. The reversal of 1217323793 is 3973237121.

It is a cyclic number.

It is not a de Polignac number, because 1217323793 - 2⁶ = 1217323729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1217323799) 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 in 15 ways as a sum of consecutive naturals, for example, 1097123 + ... + 1098231.

It is an arithmetic number, because the mean of its divisors is an integer number (87592320).

Almost surely, 2^1217323793 is an apocalyptic number.

It is an amenable number.

1217323793 is a deficient number, since it is larger than the sum of its proper divisors (184153327).

1217323793 is a wasteful number, since it uses less digits than its factorization.

1217323793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128.

The product of its digits is 47628, while the sum is 38.

The square root of 1217323793 is about 34890.1675691018. The cubic root of 1217323793 is about 1067.7478448342.

The spelling of 1217323793 in words is "one billion, two hundred seventeen million, three hundred twenty-three thousand, seven hundred ninety-three".