6309992 has 64 divisors (see below), whose sum is σ = 13970880. Its totient is φ = 2644992.

The previous prime is 6309973. The next prime is 6309997. The reversal of 6309992 is 2999036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6309997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75983 + ... + 76065.

It is an arithmetic number, because the mean of its divisors is an integer number (218295).

Almost surely, 2^6309992 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 6309992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6985440).

6309992 is an abundant number, since it is smaller than the sum of its proper divisors (7660888).

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

6309992 is a wasteful number, since it uses less digits than its factorization.

6309992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 6309992 is about 2511.9697450407. The cubic root of 6309992 is about 184.7890656499.

The spelling of 6309992 in words is "six million, three hundred nine thousand, nine hundred ninety-two".