846912461 has 2 divisors, whose sum is σ = 846912462. Its totient is φ = 846912460.

The previous prime is 846912427. The next prime is 846912533. The reversal of 846912461 is 164219648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607622500 + 239289961 = 24650^2 + 15469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-846912461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846912421) 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, 423456230 + 423456231.

It is an arithmetic number, because the mean of its divisors is an integer number (423456231).

Almost surely, 2^846912461 is an apocalyptic number.

It is an amenable number.

846912461 is a deficient number, since it is larger than the sum of its proper divisors (1).

846912461 is an equidigital number, since it uses as much as digits as its factorization.

846912461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 846912461 is about 29101.7604450315. The cubic root of 846912461 is about 946.1198936375.

The spelling of 846912461 in words is "eight hundred forty-six million, nine hundred twelve thousand, four hundred sixty-one".