8742213 has 6 divisors (see below), whose sum is σ = 12627654. Its totient is φ = 5828136.

The previous prime is 8742197. The next prime is 8742259. The reversal of 8742213 is 3122478.

It can be written as a sum of positive squares in only one way, i.e., 8105409 + 636804 = 2847^2 + 798^2 .

It is not a de Polignac number, because 8742213 - 2⁴ = 8742197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742263) 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, 485670 + ... + 485687.

It is an arithmetic number, because the mean of its divisors is an integer number (2104609).

Almost surely, 2^8742213 is an apocalyptic number.

It is an amenable number.

8742213 is a deficient number, since it is larger than the sum of its proper divisors (3885441).

8742213 is a wasteful number, since it uses less digits than its factorization.

8742213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971363 (or 971360 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 8742213 is about 2956.7233553378. The cubic root of 8742213 is about 206.0031183743.

The spelling of 8742213 in words is "eight million, seven hundred forty-two thousand, two hundred thirteen".