6331968 has 42 divisors (see below), whose sum is σ = 18151094. Its totient is φ = 2110464.

The previous prime is 6331957. The next prime is 6331979. The reversal of 6331968 is 8691336.

It is a happy number.

6331968 is a `hidden beast` number, since 633 + 19 + 6 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (6331957) and next prime (6331979).

It can be written as a sum of positive squares in only one way, i.e., 4460544 + 1871424 = 2112^2 + 1368^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4921 + ... + 6072.

Almost surely, 2^6331968 is an apocalyptic number.

It is an amenable number.

6331968 is an abundant number, since it is smaller than the sum of its proper divisors (11819126).

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

6331968 is a wasteful number, since it uses less digits than its factorization.

6331968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011 (or 10998 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6331968 is about 2516.3401995756. The cubic root of 6331968 is about 185.0033405776.

It can be divided in two parts, 633 and 1968, that added together give a square (2601 = 51²).

The spelling of 6331968 in words is "six million, three hundred thirty-one thousand, nine hundred sixty-eight".