6487938 has 40 divisors (see below), whose sum is σ = 15049980. Its totient is φ = 2086560.

The previous prime is 6487933. The next prime is 6487939. The reversal of 6487938 is 8397846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6487209 + 729 = 2547^2 + 27^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6487893 and 6487902.

It is not an unprimeable number, because it can be changed into a prime (6487933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4008 + ... + 5388.

Almost surely, 2^6487938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6487938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7524990).

6487938 is an abundant number, since it is smaller than the sum of its proper divisors (8562042).

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

6487938 is a wasteful number, since it uses less digits than its factorization.

6487938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1415 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6487938 is about 2547.1431055204. The cubic root of 6487938 is about 186.5100464895.

It can be divided in two parts, 6487 and 938, that multiplied together give a palindrome (6084806).

The spelling of 6487938 in words is "six million, four hundred eighty-seven thousand, nine hundred thirty-eight".