396321622389 has 96 divisors (see below), whose sum is σ = 763002912000. Its totient is φ = 198781672320.

The previous prime is 396321622379. The next prime is 396321622391. The reversal of 396321622389 is 983226123693.

It is a happy number.

396321622389 is a `hidden beast` number, since 3 + 9 + 6 + 3 + 2 + 1 + 622 + 3 + 8 + 9 = 666.

It is not a de Polignac number, because 396321622389 - 2⁷ = 396321622261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396321622349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 364407 + ... + 961995.

It is an arithmetic number, because the mean of its divisors is an integer number (7947947000).

Almost surely, 2^396321622389 is an apocalyptic number.

It is an amenable number.

396321622389 is a deficient number, since it is larger than the sum of its proper divisors (366681289611).

396321622389 is a wasteful number, since it uses less digits than its factorization.

396321622389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597656 (or 597639 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The spelling of 396321622389 in words is "three hundred ninety-six billion, three hundred twenty-one million, six hundred twenty-two thousand, three hundred eighty-nine".