812680471 has 2 divisors, whose sum is σ = 812680472. Its totient is φ = 812680470.

The previous prime is 812680447. The next prime is 812680481. The reversal of 812680471 is 174086218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812680471 - 2⁷ = 812680343 is a prime.

It is a super-3 number, since 3×812680471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 812680471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812680481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406340235 + 406340236.

It is an arithmetic number, because the mean of its divisors is an integer number (406340236).

Almost surely, 2^812680471 is an apocalyptic number.

812680471 is a deficient number, since it is larger than the sum of its proper divisors (1).

812680471 is an equidigital number, since it uses as much as digits as its factorization.

812680471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 812680471 is about 28507.5511224658. The cubic root of 812680471 is about 933.1968722970.

The spelling of 812680471 in words is "eight hundred twelve million, six hundred eighty thousand, four hundred seventy-one".