846912449 has 4 divisors (see below), whose sum is σ = 848121300. Its totient is φ = 845703600.

The previous prime is 846912427. The next prime is 846912461. The reversal of 846912449 is 944219648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 300849025 + 546063424 = 17345^2 + 23368^2 .

It is a cyclic number.

It is not a de Polignac number, because 846912449 - 2⁸ = 846912193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846972449) 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 in 3 ways as a sum of consecutive naturals, for example, 603374 + ... + 604775.

It is an arithmetic number, because the mean of its divisors is an integer number (212030325).

Almost surely, 2^846912449 is an apocalyptic number.

It is an amenable number.

846912449 is a deficient number, since it is larger than the sum of its proper divisors (1208851).

846912449 is a wasteful number, since it uses less digits than its factorization.

846912449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208850.

The product of its digits is 497664, while the sum is 47.

The square root of 846912449 is about 29101.7602388584. The cubic root of 846912449 is about 946.1198891689.

The spelling of 846912449 in words is "eight hundred forty-six million, nine hundred twelve thousand, four hundred forty-nine".