844664949 has 32 divisors (see below), whose sum is σ = 1311206400. Its totient is φ = 536382000.

The previous prime is 844664927. The next prime is 844664963. The reversal of 844664949 is 949466448.

It is a happy number.

It is not a de Polignac number, because 844664949 - 2¹² = 844660853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844664895 and 844664904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844664449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153162 + ... + 158580.

It is an arithmetic number, because the mean of its divisors is an integer number (40975200).

Almost surely, 2^844664949 is an apocalyptic number.

It is an amenable number.

844664949 is a deficient number, since it is larger than the sum of its proper divisors (466541451).

844664949 is a wasteful number, since it uses less digits than its factorization.

844664949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702 (or 5696 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 844664949 is about 29063.1200837075. The cubic root of 844664949 is about 945.2822235918.

The spelling of 844664949 in words is "eight hundred forty-four million, six hundred sixty-four thousand, nine hundred forty-nine".