396844743 has 4 divisors (see below), whose sum is σ = 529126328. Its totient is φ = 264563160.

The previous prime is 396844741. The next prime is 396844841. The reversal of 396844743 is 347448693.

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

It is not a de Polignac number, because 396844743 - 2¹ = 396844741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396844692 and 396844701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396844741) 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 in 3 ways as a sum of consecutive naturals, for example, 66140788 + ... + 66140793.

It is an arithmetic number, because the mean of its divisors is an integer number (132281582).

Almost surely, 2^396844743 is an apocalyptic number.

396844743 is a deficient number, since it is larger than the sum of its proper divisors (132281585).

396844743 is a wasteful number, since it uses less digits than its factorization.

396844743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132281584.

The product of its digits is 1741824, while the sum is 48.

The square root of 396844743 is about 19920.9624014504. The cubic root of 396844743 is about 734.8638389080.

The spelling of 396844743 in words is "three hundred ninety-six million, eight hundred forty-four thousand, seven hundred forty-three".