827770423 has 2 divisors, whose sum is σ = 827770424. Its totient is φ = 827770422.

The previous prime is 827770421. The next prime is 827770451. The reversal of 827770423 is 324077728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827770423 - 2¹ = 827770421 is a prime.

Together with 827770421, it forms a pair of twin primes.

It is equal to p_42499903 and since 827770423 and 42499903 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827770421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413885211 + 413885212.

It is an arithmetic number, because the mean of its divisors is an integer number (413885212).

Almost surely, 2^827770423 is an apocalyptic number.

827770423 is a deficient number, since it is larger than the sum of its proper divisors (1).

827770423 is an equidigital number, since it uses as much as digits as its factorization.

827770423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 827770423 is about 28770.9996871850. Note that the first 3 decimals coincide. The cubic root of 827770423 is about 938.9373925004.

The spelling of 827770423 in words is "eight hundred twenty-seven million, seven hundred seventy thousand, four hundred twenty-three".