716128823 has 2 divisors, whose sum is σ = 716128824. Its totient is φ = 716128822.

The previous prime is 716128789. The next prime is 716128877. The reversal of 716128823 is 328821617.

It is a weak prime.

It is an emirp because it is prime and its reverse (328821617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 716128823 - 2¹⁰ = 716127799 is a prime.

It is a super-3 number, since 3×716128823³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716128123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358064411 + 358064412.

It is an arithmetic number, because the mean of its divisors is an integer number (358064412).

Almost surely, 2^716128823 is an apocalyptic number.

716128823 is a deficient number, since it is larger than the sum of its proper divisors (1).

716128823 is an equidigital number, since it uses as much as digits as its factorization.

716128823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 716128823 is about 26760.5833830281. The cubic root of 716128823 is about 894.6717367158.

The spelling of 716128823 in words is "seven hundred sixteen million, one hundred twenty-eight thousand, eight hundred twenty-three".