813688453 has 8 divisors (see below), whose sum is σ = 819640800. Its totient is φ = 807746160.

The previous prime is 813688451. The next prime is 813688517. The reversal of 813688453 is 354886318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 813688453 - 2¹ = 813688451 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 (813688451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244998 + ... + 248296.

It is an arithmetic number, because the mean of its divisors is an integer number (102455100).

Almost surely, 2^813688453 is an apocalyptic number.

It is an amenable number.

813688453 is a deficient number, since it is larger than the sum of its proper divisors (5952347).

813688453 is a wasteful number, since it uses less digits than its factorization.

813688453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027.

The product of its digits is 552960, while the sum is 46.

The square root of 813688453 is about 28525.2248545038. The cubic root of 813688453 is about 933.5825331035.

The spelling of 813688453 in words is "eight hundred thirteen million, six hundred eighty-eight thousand, four hundred fifty-three".