6699393 has 6 divisors (see below), whose sum is σ = 9676914. Its totient is φ = 4466256.

The previous prime is 6699389. The next prime is 6699401. The reversal of 6699393 is 3939966.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 288369 = 2532^2 + 537^2 .

It is not a de Polignac number, because 6699393 - 2² = 6699389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6699293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 372180 + ... + 372197.

It is an arithmetic number, because the mean of its divisors is an integer number (1612819).

Almost surely, 2^6699393 is an apocalyptic number.

It is an amenable number.

6699393 is a deficient number, since it is larger than the sum of its proper divisors (2977521).

6699393 is a wasteful number, since it uses less digits than its factorization.

6699393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744383 (or 744380 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The square root of 6699393 is about 2588.3185661738. The cubic root of 6699393 is about 188.5146698028.

The spelling of 6699393 in words is "six million, six hundred ninety-nine thousand, three hundred ninety-three".