6488139 has 48 divisors (see below), whose sum is σ = 11162880. Its totient is φ = 3326400.

The previous prime is 6488137. The next prime is 6488147. The reversal of 6488139 is 9318846.

It is not a de Polignac number, because 6488139 - 2¹ = 6488137 is a prime.

6488139 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6488097 and 6488106.

It is not an unprimeable number, because it can be changed into a prime (6488137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64189 + ... + 64289.

It is an arithmetic number, because the mean of its divisors is an integer number (232560).

Almost surely, 2^6488139 is an apocalyptic number.

6488139 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

6488139 is a deficient number, since it is larger than the sum of its proper divisors (4674741).

6488139 is a wasteful number, since it uses less digits than its factorization.

6488139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 153 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 6488139 is about 2547.1825611840. The cubic root of 6488139 is about 186.5119725320.

The spelling of 6488139 in words is "six million, four hundred eighty-eight thousand, one hundred thirty-nine".