844847451 has 12 divisors (see below), whose sum is σ = 1394668912. Its totient is φ = 482769936.

The previous prime is 844847449. The next prime is 844847461. The reversal of 844847451 is 154748448.

It is not a de Polignac number, because 844847451 - 2¹ = 844847449 is a prime.

It is a super-2 number, since 2×844847451² = 1427534430922394802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 844847397 and 844847406.

It is not an unprimeable number, because it can be changed into a prime (844847411) 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 11 ways as a sum of consecutive naturals, for example, 6705076 + ... + 6705201.

Almost surely, 2^844847451 is an apocalyptic number.

844847451 is a deficient number, since it is larger than the sum of its proper divisors (549821461).

844847451 is a wasteful number, since it uses less digits than its factorization.

844847451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13410290 (or 13410287 counting only the distinct ones).

The product of its digits is 573440, while the sum is 45.

The square root of 844847451 is about 29066.2596664930. The cubic root of 844847451 is about 945.3502992919.

The spelling of 844847451 in words is "eight hundred forty-four million, eight hundred forty-seven thousand, four hundred fifty-one".