6291312 has 40 divisors (see below), whose sum is σ = 16565904. Its totient is φ = 2056704.

The previous prime is 6291301. The next prime is 6291319. The reversal of 6291312 is 2131926.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6291319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308 + ... + 3780.

Almost surely, 2^6291312 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 6291312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8282952).

6291312 is an abundant number, since it is smaller than the sum of its proper divisors (10274592).

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

6291312 is a wasteful number, since it uses less digits than its factorization.

6291312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537 (or 2531 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 6291312 is about 2508.2487914878. The cubic root of 6291312 is about 184.6065365418.

The spelling of 6291312 in words is "six million, two hundred ninety-one thousand, three hundred twelve".