396591689 has 8 divisors (see below), whose sum is σ = 427268352. Its totient is φ = 365939280.

The previous prime is 396591667. The next prime is 396591707. The reversal of 396591689 is 986195693.

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 396591689 - 2¹² = 396587593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396591659) 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 7 ways as a sum of consecutive naturals, for example, 42152 + ... + 50694.

It is an arithmetic number, because the mean of its divisors is an integer number (53408544).

Almost surely, 2^396591689 is an apocalyptic number.

It is an amenable number.

396591689 is a deficient number, since it is larger than the sum of its proper divisors (30676663).

396591689 is a wasteful number, since it uses less digits than its factorization.

396591689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12127.

The product of its digits is 3149280, while the sum is 56.

The square root of 396591689 is about 19914.6099384346. The cubic root of 396591689 is about 734.7076067139.

The spelling of 396591689 in words is "three hundred ninety-six million, five hundred ninety-one thousand, six hundred eighty-nine".