6317988 has 12 divisors (see below), whose sum is σ = 14742000. Its totient is φ = 2105992.

The previous prime is 6317963. The next prime is 6318001. The reversal of 6317988 is 8897136.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263238 + ... + 263261.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^6317988 is an apocalyptic number.

It is an amenable number.

6317988 is an abundant number, since it is smaller than the sum of its proper divisors (8424012).

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

6317988 is a wasteful number, since it uses less digits than its factorization.

6317988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526506 (or 526504 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 6317988 is about 2513.5608208277. The cubic root of 6317988 is about 184.8670873908.

The spelling of 6317988 in words is "six million, three hundred seventeen thousand, nine hundred eighty-eight".