396727717408 has 96 divisors (see below), whose sum is σ = 870551877888. Its totient is φ = 176420966400.

The previous prime is 396727717403. The next prime is 396727717409. The reversal of 396727717408 is 804717727693.

It is not an unprimeable number, because it can be changed into a prime (396727717403) 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 15 ways as a sum of consecutive naturals, for example, 69101418 + ... + 69107158.

It is an arithmetic number, because the mean of its divisors is an integer number (9068248728).

Almost surely, 2^396727717408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396727717408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435275938944).

396727717408 is an abundant number, since it is smaller than the sum of its proper divisors (473824160480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396727717408 is a wasteful number, since it uses less digits than its factorization.

396727717408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9986 (or 9978 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 61.

The spelling of 396727717408 in words is "three hundred ninety-six billion, seven hundred twenty-seven million, seven hundred seventeen thousand, four hundred eight".