6487738 has 8 divisors (see below), whose sum is σ = 9750420. Its totient is φ = 3237600.

The previous prime is 6487687. The next prime is 6487751. The reversal of 6487738 is 8377846.

It can be written as a sum of positive squares in 2 ways, for example, as 6487209 + 529 = 2547^2 + 23^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

Its product of digits (225792) is a multiple of the sum of its prime divisors (6272).

It is a junction number, because it is equal to n+sod(n) for n = 6487694 and 6487703.

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, 1713 + ... + 3988.

Almost surely, 2^6487738 is an apocalyptic number.

6487738 is a deficient number, since it is larger than the sum of its proper divisors (3262682).

6487738 is a wasteful number, since it uses less digits than its factorization.

6487738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272.

The product of its digits is 225792, while the sum is 43.

The square root of 6487738 is about 2547.1038455469. The cubic root of 6487738 is about 186.5081299898.

It can be divided in two parts, 6487 and 738, that added together give a square (7225 = 85²).

The spelling of 6487738 in words is "six million, four hundred eighty-seven thousand, seven hundred thirty-eight".