7716213 has 6 divisors (see below), whose sum is σ = 11145654. Its totient is φ = 5144136.

The previous prime is 7716199. The next prime is 7716229. The reversal of 7716213 is 3126177.

7716213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7064964 + 651249 = 2658^2 + 807^2 .

It is not a de Polignac number, because 7716213 - 2¹⁴ = 7699829 is a prime.

It is a super-2 number, since 2×7716213² = 119079886122738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7716713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428670 + ... + 428687.

It is an arithmetic number, because the mean of its divisors is an integer number (1857609).

Almost surely, 2^7716213 is an apocalyptic number.

It is an amenable number.

7716213 is a deficient number, since it is larger than the sum of its proper divisors (3429441).

7716213 is a wasteful number, since it uses less digits than its factorization.

7716213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857363 (or 857360 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 7716213 is about 2777.8072287328. The cubic root of 7716213 is about 197.6065802990.

It can be divided in two parts, 77 and 16213, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 7716213 in words is "seven million, seven hundred sixteen thousand, two hundred thirteen".