863794147 has 2 divisors, whose sum is σ = 863794148. Its totient is φ = 863794146.

The previous prime is 863794133. The next prime is 863794189. The reversal of 863794147 is 741497368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863794147 - 2¹¹ = 863792099 is a prime.

It is a super-2 number, since 2×863794147² = 1492280656782915218, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 863794147.

It is not a weakly prime, because it can be changed into another prime (863794747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431897073 + 431897074.

It is an arithmetic number, because the mean of its divisors is an integer number (431897074).

Almost surely, 2^863794147 is an apocalyptic number.

863794147 is a deficient number, since it is larger than the sum of its proper divisors (1).

863794147 is an equidigital number, since it uses as much as digits as its factorization.

863794147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 863794147 is about 29390.3750741633. The cubic root of 863794147 is about 952.3649836754.

The spelling of 863794147 in words is "eight hundred sixty-three million, seven hundred ninety-four thousand, one hundred forty-seven".