6699975 has 24 divisors (see below), whose sum is σ = 11167440. Its totient is φ = 3544320.

The previous prime is 6699961. The next prime is 6699977. The reversal of 6699975 is 5799966.

It is not a de Polignac number, because 6699975 - 2¹⁵ = 6667207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699977) 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, 11491 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (465310).

Almost surely, 2^6699975 is an apocalyptic number.

6699975 is a deficient number, since it is larger than the sum of its proper divisors (4467465).

6699975 is a wasteful number, since it uses less digits than its factorization.

6699975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 734 counting only the distinct ones).

The product of its digits is 918540, while the sum is 51.

The square root of 6699975 is about 2588.4309919331. The cubic root of 6699975 is about 188.5201286237.

Subtracting from 6699975 its reverse (5799966), we obtain a palindrome (900009).

The spelling of 6699975 in words is "six million, six hundred ninety-nine thousand, nine hundred seventy-five".