812097029 has 2 divisors, whose sum is σ = 812097030. Its totient is φ = 812097028.

The previous prime is 812097023. The next prime is 812097073. The reversal of 812097029 is 920790218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466992100 + 345104929 = 21610^2 + 18577^2 .

It is a cyclic number.

It is not a de Polignac number, because 812097029 - 2²⁴ = 795319813 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 812096983 and 812097001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812097023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406048514 + 406048515.

It is an arithmetic number, because the mean of its divisors is an integer number (406048515).

Almost surely, 2^812097029 is an apocalyptic number.

It is an amenable number.

812097029 is a deficient number, since it is larger than the sum of its proper divisors (1).

812097029 is an equidigital number, since it uses as much as digits as its factorization.

812097029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 812097029 is about 28497.3161718784. The cubic root of 812097029 is about 932.9734976678.

The spelling of 812097029 in words is "eight hundred twelve million, ninety-seven thousand, twenty-nine".