1729797956 has 12 divisors (see below), whose sum is σ = 3029928720. Its totient is φ = 864104040.

The previous prime is 1729797929. The next prime is 1729797959. The reversal of 1729797956 is 6597979271.

It is not an unprimeable number, because it can be changed into a prime (1729797959) 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, 193826 + ... + 202553.

It is an arithmetic number, because the mean of its divisors is an integer number (252494060).

Almost surely, 2^1729797956 is an apocalyptic number.

It is an amenable number.

1729797956 is a deficient number, since it is larger than the sum of its proper divisors (1300130764).

1729797956 is a wasteful number, since it uses less digits than its factorization.

1729797956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397474 (or 397472 counting only the distinct ones).

The product of its digits is 15002820, while the sum is 62.

The square root of 1729797956 is about 41590.8398087848. The cubic root of 1729797956 is about 1200.4160492544.

The spelling of 1729797956 in words is "one billion, seven hundred twenty-nine million, seven hundred ninety-seven thousand, nine hundred fifty-six".