1716747253 has 4 divisors (see below), whose sum is σ = 1848804748. Its totient is φ = 1584689760.

The previous prime is 1716747229. The next prime is 1716747257. The reversal of 1716747253 is 3527476171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3527476171 = 7307 ⋅482753.

It can be written as a sum of positive squares in 2 ways, for example, as 1171898289 + 544848964 = 34233^2 + 23342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1716747253 - 2⁹ = 1716746741 is a prime.

It is a super-4 number, since 4×1716747253⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716747257) 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, 66028728 + ... + 66028753.

It is an arithmetic number, because the mean of its divisors is an integer number (462201187).

Almost surely, 2^1716747253 is an apocalyptic number.

1716747253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1716747253 is a deficient number, since it is larger than the sum of its proper divisors (132057495).

1716747253 is a wasteful number, since it uses less digits than its factorization.

1716747253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132057494.

The product of its digits is 246960, while the sum is 43.

The square root of 1716747253 is about 41433.6488014271. The cubic root of 1716747253 is about 1197.3895227454.

The spelling of 1716747253 in words is "one billion, seven hundred sixteen million, seven hundred forty-seven thousand, two hundred fifty-three".