396717696 has 128 divisors (see below), whose sum is σ = 1178956800. Its totient is φ = 131328000.

The previous prime is 396717691. The next prime is 396717707. The reversal of 396717696 is 696717693.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396717691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659796 + ... + 660396.

It is an arithmetic number, because the mean of its divisors is an integer number (9210600).

Almost surely, 2^396717696 is an apocalyptic number.

396717696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396717696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589478400).

396717696 is an abundant number, since it is smaller than the sum of its proper divisors (782239104).

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

396717696 is a wasteful number, since it uses less digits than its factorization.

396717696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 797 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 396717696 is about 19917.7733695310. The cubic root of 396717696 is about 734.7854100743.

The spelling of 396717696 in words is "three hundred ninety-six million, seven hundred seventeen thousand, six hundred ninety-six".