812500027 has 2 divisors, whose sum is σ = 812500028. Its totient is φ = 812500026.

The previous prime is 812499997. The next prime is 812500063. The reversal of 812500027 is 720005218.

812500027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-812500027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812499974 and 812500010.

It is not a weakly prime, because it can be changed into another prime (812500067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406250013 + 406250014.

It is an arithmetic number, because the mean of its divisors is an integer number (406250014).

Almost surely, 2^812500027 is an apocalyptic number.

812500027 is a deficient number, since it is larger than the sum of its proper divisors (1).

812500027 is an equidigital number, since it uses as much as digits as its factorization.

812500027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 812500027 is about 28504.3861010898. The cubic root of 812500027 is about 933.1277995405.

The spelling of 812500027 in words is "eight hundred twelve million, five hundred thousand, twenty-seven".