6750000 has 140 divisors (see below), whose sum is σ = 24218440. Its totient is φ = 1800000.

The previous prime is 6749989. The next prime is 6750001. The reversal of 6750000 is 576.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (6750001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1349998 + ... + 1350002.

Almost surely, 2^6750000 is an apocalyptic number.

6750000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12109220).

6750000 is an abundant number, since it is smaller than the sum of its proper divisors (17468440).

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

6750000 is an frugal number, since it uses more digits than its factorization.

6750000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 6750000 is about 2598.0762113533. The cubic root of 6750000 is about 188.9881574842.

Adding to 6750000 its reverse (576), we get a palindrome (6750576).

The spelling of 6750000 in words is "six million, seven hundred fifty thousand".