813676337 has 2 divisors, whose sum is σ = 813676338. Its totient is φ = 813676336.

The previous prime is 813676333. The next prime is 813676343. The reversal of 813676337 is 733676318.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 752898721 + 60777616 = 27439^2 + 7796^2 .

It is a cyclic number.

It is not a de Polignac number, because 813676337 - 2² = 813676333 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (813676333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406838168 + 406838169.

It is an arithmetic number, because the mean of its divisors is an integer number (406838169).

Almost surely, 2^813676337 is an apocalyptic number.

It is an amenable number.

813676337 is a deficient number, since it is larger than the sum of its proper divisors (1).

813676337 is an equidigital number, since it uses as much as digits as its factorization.

813676337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 44.

The square root of 813676337 is about 28525.0124802777. The cubic root of 813676337 is about 933.5778993308.

The spelling of 813676337 in words is "eight hundred thirteen million, six hundred seventy-six thousand, three hundred thirty-seven".