6716538 has 48 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 2064960.

The previous prime is 6716533. The next prime is 6716539. The reversal of 6716538 is 8356176.

It is a super-2 number, since 2×6716538² = 90223765410888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6716533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13783 + ... + 14261.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^6716538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6716538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7862400).

6716538 is an abundant number, since it is smaller than the sum of its proper divisors (9008262).

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

6716538 is a wasteful number, since it uses less digits than its factorization.

6716538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 544 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 6716538 is about 2591.6284455917. The cubic root of 6716538 is about 188.6753475815.

The spelling of 6716538 in words is "six million, seven hundred sixteen thousand, five hundred thirty-eight".