846147949 has 2 divisors, whose sum is σ = 846147950. Its totient is φ = 846147948.

The previous prime is 846147941. The next prime is 846147971. The reversal of 846147949 is 949741648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506925225 + 339222724 = 22515^2 + 18418^2 .

It is a cyclic number.

It is not a de Polignac number, because 846147949 - 2³ = 846147941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 846147896 and 846147905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846147941) 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, 423073974 + 423073975.

It is an arithmetic number, because the mean of its divisors is an integer number (423073975).

Almost surely, 2^846147949 is an apocalyptic number.

It is an amenable number.

846147949 is a deficient number, since it is larger than the sum of its proper divisors (1).

846147949 is an equidigital number, since it uses as much as digits as its factorization.

846147949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 846147949 is about 29088.6223290138. The cubic root of 846147949 is about 945.8351189204.

The spelling of 846147949 in words is "eight hundred forty-six million, one hundred forty-seven thousand, nine hundred forty-nine".