7127713 has 4 divisors (see below), whose sum is σ = 7175700. Its totient is φ = 7079728.

The previous prime is 7127711. The next prime is 7127719. The reversal of 7127713 is 3177217.

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 1520289 + 5607424 = 1233^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 7127713 - 2¹ = 7127711 is a prime.

It is a super-2 number, since 2×7127713² = 101608585220738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7127711) 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, 23770 + ... + 24067.

It is an arithmetic number, because the mean of its divisors is an integer number (1793925).

Almost surely, 2^7127713 is an apocalyptic number.

It is an amenable number.

7127713 is a deficient number, since it is larger than the sum of its proper divisors (47987).

7127713 is a wasteful number, since it uses less digits than its factorization.

7127713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47986.

The product of its digits is 2058, while the sum is 28.

The square root of 7127713 is about 2669.7777061021. Note that the first 4 decimals coincide. The cubic root of 7127713 is about 192.4494768180.

The spelling of 7127713 in words is "seven million, one hundred twenty-seven thousand, seven hundred thirteen".