6487641 has 8 divisors (see below), whose sum is σ = 9611360. Its totient is φ = 4325076.

The previous prime is 6487577. The next prime is 6487643. The reversal of 6487641 is 1467846.

6487641 is a `hidden beast` number, since 6 + 4 + 8 + 7 + 641 = 666.

It is not a de Polignac number, because 6487641 - 2⁶ = 6487577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6487596 and 6487605.

It is not an unprimeable number, because it can be changed into a prime (6487643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120115 + ... + 120168.

It is an arithmetic number, because the mean of its divisors is an integer number (1201420).

Almost surely, 2^6487641 is an apocalyptic number.

It is an amenable number.

6487641 is a deficient number, since it is larger than the sum of its proper divisors (3123719).

6487641 is a wasteful number, since it uses less digits than its factorization.

6487641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240292 (or 240286 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6487641 is about 2547.0848042419. The cubic root of 6487641 is about 186.5072004733.

The spelling of 6487641 in words is "six million, four hundred eighty-seven thousand, six hundred forty-one".