396645743 has 8 divisors (see below), whose sum is σ = 429987936. Its totient is φ = 363708000.

The previous prime is 396645671. The next prime is 396645749. The reversal of 396645743 is 347546693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396645743 - 2¹⁰ = 396644719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396645749) 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 7 ways as a sum of consecutive naturals, for example, 99068 + ... + 102993.

It is an arithmetic number, because the mean of its divisors is an integer number (53748492).

Almost surely, 2^396645743 is an apocalyptic number.

396645743 is a deficient number, since it is larger than the sum of its proper divisors (33342193).

396645743 is a wasteful number, since it uses less digits than its factorization.

396645743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202225.

The product of its digits is 1632960, while the sum is 47.

The square root of 396645743 is about 19915.9670365262. The cubic root of 396645743 is about 734.7409845195.

The spelling of 396645743 in words is "three hundred ninety-six million, six hundred forty-five thousand, seven hundred forty-three".