844213743 has 12 divisors (see below), whose sum is σ = 1225201848. Its totient is φ = 560140560.

The previous prime is 844213703. The next prime is 844213771. The reversal of 844213743 is 347312448.

It is not a de Polignac number, because 844213743 - 2²⁴ = 827436527 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 844213698 and 844213707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844213703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220380 + ... + 224177.

It is an arithmetic number, because the mean of its divisors is an integer number (102100154).

Almost surely, 2^844213743 is an apocalyptic number.

844213743 is a deficient number, since it is larger than the sum of its proper divisors (380988105).

844213743 is a wasteful number, since it uses less digits than its factorization.

844213743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444774 (or 444771 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 844213743 is about 29055.3565285302. The cubic root of 844213743 is about 945.1138755859.

The spelling of 844213743 in words is "eight hundred forty-four million, two hundred thirteen thousand, seven hundred forty-three".