8213453 has 4 divisors (see below), whose sum is σ = 8645760. Its totient is φ = 7781148.

The previous prime is 8213441. The next prime is 8213459. The reversal of 8213453 is 3543128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8213453 - 2⁴ = 8213437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213459) 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, 216125 + ... + 216162.

It is an arithmetic number, because the mean of its divisors is an integer number (2161440).

Almost surely, 2^8213453 is an apocalyptic number.

It is an amenable number.

8213453 is a deficient number, since it is larger than the sum of its proper divisors (432307).

8213453 is a wasteful number, since it uses less digits than its factorization.

8213453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432306.

The product of its digits is 2880, while the sum is 26.

The square root of 8213453 is about 2865.9122456907. The cubic root of 8213453 is about 201.7631852110.

The spelling of 8213453 in words is "eight million, two hundred thirteen thousand, four hundred fifty-three".