388716 has 24 divisors (see below), whose sum is σ = 939120. Its totient is φ = 124992.

The previous prime is 388711. The next prime is 388727. The reversal of 388716 is 617883.

It is a super-2 number, since 2×388716² = 302200257312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388711) by changing a digit.

388716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 906.

It is an arithmetic number, because the mean of its divisors is an integer number (39130).

2³⁸⁸⁷¹⁶ is an apocalyptic number.

It is an amenable number.

388716 is an abundant number, since it is smaller than the sum of its proper divisors (550404).

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

388716 is a wasteful number, since it uses less digits than its factorization.

388716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1151 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 388716 is about 623.4709295549. The cubic root of 388716 is about 72.9811673444.

The spelling of 388716 in words is "three hundred eighty-eight thousand, seven hundred sixteen".