816063013 has 2 divisors, whose sum is σ = 816063014. Its totient is φ = 816063012.

The previous prime is 816062953. The next prime is 816063029. The reversal of 816063013 is 310360618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705539844 + 110523169 = 26562^2 + 10513^2 .

It is a cyclic number.

It is not a de Polignac number, because 816063013 - 2⁹ = 816062501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816033013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408031506 + 408031507.

It is an arithmetic number, because the mean of its divisors is an integer number (408031507).

Almost surely, 2^816063013 is an apocalyptic number.

It is an amenable number.

816063013 is a deficient number, since it is larger than the sum of its proper divisors (1).

816063013 is an equidigital number, since it uses as much as digits as its factorization.

816063013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 816063013 is about 28566.8166409910. The cubic root of 816063013 is about 934.4897987652.

The spelling of 816063013 in words is "eight hundred sixteen million, sixty-three thousand, thirteen".