8653213 has 4 divisors (see below), whose sum is σ = 8674780. Its totient is φ = 8631648.

The previous prime is 8653207. The next prime is 8653219. The reversal of 8653213 is 3123568.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8653207) and next prime (8653219).

It can be written as a sum of positive squares in 2 ways, for example, as 3755844 + 4897369 = 1938^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 8653213 - 2¹⁷ = 8522141 is a prime.

It is a Duffinian number.

8653213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8653219) 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, 10170 + ... + 10987.

It is an arithmetic number, because the mean of its divisors is an integer number (2168695).

Almost surely, 2^8653213 is an apocalyptic number.

It is an amenable number.

8653213 is a deficient number, since it is larger than the sum of its proper divisors (21567).

8653213 is a wasteful number, since it uses less digits than its factorization.

8653213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21566.

The product of its digits is 4320, while the sum is 28.

The square root of 8653213 is about 2941.6344096437. The cubic root of 8653213 is about 205.3016617700.

The spelling of 8653213 in words is "eight million, six hundred fifty-three thousand, two hundred thirteen".