716769553 has 4 divisors (see below), whose sum is σ = 726588388. Its totient is φ = 706950720.

The previous prime is 716769541. The next prime is 716769611. The reversal of 716769553 is 355967617.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 367565584 + 349203969 = 19172^2 + 18687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716769553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 716769497 and 716769506.

It is not an unprimeable number, because it can be changed into a prime (716769523) 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, 4909308 + ... + 4909453.

It is an arithmetic number, because the mean of its divisors is an integer number (181647097).

Almost surely, 2^716769553 is an apocalyptic number.

716769553 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

716769553 is a deficient number, since it is larger than the sum of its proper divisors (9818835).

716769553 is an equidigital number, since it uses as much as digits as its factorization.

716769553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9818834.

The product of its digits is 1190700, while the sum is 49.

The square root of 716769553 is about 26772.5522317167. The cubic root of 716769553 is about 894.9384820861.

The spelling of 716769553 in words is "seven hundred sixteen million, seven hundred sixty-nine thousand, five hundred fifty-three".