6487140 has 48 divisors (see below), whose sum is σ = 19817280. Its totient is φ = 1572480.

The previous prime is 6487123. The next prime is 6487157. The reversal of 6487140 is 417846.

6487140 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6487123) and next prime (6487157).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6487098 and 6487107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4255 + ... + 5574.

It is an arithmetic number, because the mean of its divisors is an integer number (412860).

Almost surely, 2^6487140 is an apocalyptic number.

6487140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6487140 is an abundant number, since it is smaller than the sum of its proper divisors (13330140).

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

6487140 is a wasteful number, since it uses less digits than its factorization.

6487140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9850 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 6487140 is about 2546.9864546165. The cubic root of 6487140 is about 186.5023994210.

The spelling of 6487140 in words is "six million, four hundred eighty-seven thousand, one hundred forty".