812353 has 2 divisors, whose sum is σ = 812354. Its totient is φ = 812352.

The previous prime is 812351. The next prime is 812359. The reversal of 812353 is 353218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804609 + 7744 = 897^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 812353 - 2¹ = 812351 is a prime.

Together with 812351, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (812351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406176 + 406177.

It is an arithmetic number, because the mean of its divisors is an integer number (406177).

2⁸¹²³⁵³ is an apocalyptic number.

It is an amenable number.

812353 is a deficient number, since it is larger than the sum of its proper divisors (1).

812353 is an equidigital number, since it uses as much as digits as its factorization.

812353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 812353 is about 901.3062742487. The cubic root of 812353 is about 93.3071511027.

The spelling of 812353 in words is "eight hundred twelve thousand, three hundred fifty-three".