812476871 has 2 divisors, whose sum is σ = 812476872. Its totient is φ = 812476870.

The previous prime is 812476837. The next prime is 812476897. The reversal of 812476871 is 178674218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812476871 - 2¹⁸ = 812214727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812470871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406238435 + 406238436.

It is an arithmetic number, because the mean of its divisors is an integer number (406238436).

Almost surely, 2^812476871 is an apocalyptic number.

812476871 is a deficient number, since it is larger than the sum of its proper divisors (1).

812476871 is an equidigital number, since it uses as much as digits as its factorization.

812476871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 44.

The square root of 812476871 is about 28503.9799150926. The cubic root of 812476871 is about 933.1189348382.

The spelling of 812476871 in words is "eight hundred twelve million, four hundred seventy-six thousand, eight hundred seventy-one".