846478043 has 2 divisors, whose sum is σ = 846478044. Its totient is φ = 846478042.

The previous prime is 846478027. The next prime is 846478051. The reversal of 846478043 is 340874648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 846478043 - 2⁴ = 846478027 is a prime.

It is a super-2 number, since 2×846478043² = 1433050154562219698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 846477985 and 846478003.

It is not a weakly prime, because it can be changed into another prime (846478643) 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, 423239021 + 423239022.

It is an arithmetic number, because the mean of its divisors is an integer number (423239022).

Almost surely, 2^846478043 is an apocalyptic number.

846478043 is a deficient number, since it is larger than the sum of its proper divisors (1).

846478043 is an equidigital number, since it uses as much as digits as its factorization.

846478043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 846478043 is about 29094.2957123901. The cubic root of 846478043 is about 945.9580973771.

The spelling of 846478043 in words is "eight hundred forty-six million, four hundred seventy-eight thousand, forty-three".