717340028 has 6 divisors (see below), whose sum is σ = 1255345056. Its totient is φ = 358670012.

The previous prime is 717340021. The next prime is 717340049. The reversal of 717340028 is 820043717.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 717339976 and 717340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717340021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89667500 + ... + 89667507.

It is an arithmetic number, because the mean of its divisors is an integer number (209224176).

Almost surely, 2^717340028 is an apocalyptic number.

It is an amenable number.

717340028 is a deficient number, since it is larger than the sum of its proper divisors (538005028).

717340028 is a wasteful number, since it uses less digits than its factorization.

717340028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179335011 (or 179335009 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 717340028 is about 26783.2042145819. The cubic root of 717340028 is about 895.1758455187.

The spelling of 717340028 in words is "seven hundred seventeen million, three hundred forty thousand, twenty-eight".