8773213 has 4 divisors (see below), whose sum is σ = 8893468. Its totient is φ = 8652960.

The previous prime is 8773211. The next prime is 8773223. The reversal of 8773213 is 3123778.

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 7064964 + 1708249 = 2658^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 8773213 - 2¹ = 8773211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8773211) 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, 60018 + ... + 60163.

It is an arithmetic number, because the mean of its divisors is an integer number (2223367).

Almost surely, 2^8773213 is an apocalyptic number.

It is an amenable number.

8773213 is a deficient number, since it is larger than the sum of its proper divisors (120255).

8773213 is a wasteful number, since it uses less digits than its factorization.

8773213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120254.

The product of its digits is 7056, while the sum is 31.

The square root of 8773213 is about 2961.9610058203. The cubic root of 8773213 is about 206.2463276971.

The spelling of 8773213 in words is "eight million, seven hundred seventy-three thousand, two hundred thirteen".