396717888 has 112 divisors (see below), whose sum is σ = 1220175360. Its totient is φ = 111404544.

The previous prime is 396717877. The next prime is 396717889. The reversal of 396717888 is 888717693.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396717889) 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, 76795 + ... + 81797.

Almost surely, 2^396717888 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 396717888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610087680).

396717888 is an abundant number, since it is smaller than the sum of its proper divisors (823457472).

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

396717888 is a wasteful number, since it uses less digits than its factorization.

396717888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084 (or 5074 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 57.

The square root of 396717888 is about 19917.7781893463. The cubic root of 396717888 is about 734.7855286127.

The spelling of 396717888 in words is "three hundred ninety-six million, seven hundred seventeen thousand, eight hundred eighty-eight".