863061847 has 2 divisors, whose sum is σ = 863061848. Its totient is φ = 863061846.

The previous prime is 863061827. The next prime is 863061851. The reversal of 863061847 is 748160368.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-863061847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863061817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431530923 + 431530924.

It is an arithmetic number, because the mean of its divisors is an integer number (431530924).

Almost surely, 2^863061847 is an apocalyptic number.

863061847 is a deficient number, since it is larger than the sum of its proper divisors (1).

863061847 is an equidigital number, since it uses as much as digits as its factorization.

863061847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 863061847 is about 29377.9142724598. The cubic root of 863061847 is about 952.0957783112.

The spelling of 863061847 in words is "eight hundred sixty-three million, sixty-one thousand, eight hundred forty-seven".