6813453 has 4 divisors (see below), whose sum is σ = 9084608. Its totient is φ = 4542300.

The previous prime is 6813409. The next prime is 6813473. The reversal of 6813453 is 3543186.

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 not a de Polignac number, because 6813453 - 2¹⁴ = 6797069 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6813453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6813403) 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, 1135573 + ... + 1135578.

It is an arithmetic number, because the mean of its divisors is an integer number (2271152).

Almost surely, 2^6813453 is an apocalyptic number.

It is an amenable number.

6813453 is a deficient number, since it is larger than the sum of its proper divisors (2271155).

6813453 is a wasteful number, since it uses less digits than its factorization.

6813453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271154.

The product of its digits is 8640, while the sum is 30.

The square root of 6813453 is about 2610.2591825334. The cubic root of 6813453 is about 189.5785023873.

The spelling of 6813453 in words is "six million, eight hundred thirteen thousand, four hundred fifty-three".