6993797 has 4 divisors (see below), whose sum is σ = 7065996. Its totient is φ = 6921600.

The previous prime is 6993787. The next prime is 6993799. The reversal of 6993797 is 7973996.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2114116 + 4879681 = 1454^2 + 2209^2 .

It is a cyclic number.

It is not a de Polignac number, because 6993797 - 2⁴ = 6993781 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6993799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35954 + ... + 36147.

It is an arithmetic number, because the mean of its divisors is an integer number (1766499).

Almost surely, 2^6993797 is an apocalyptic number.

It is an amenable number.

6993797 is a deficient number, since it is larger than the sum of its proper divisors (72199).

6993797 is an equidigital number, since it uses as much as digits as its factorization.

6993797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72198.

The product of its digits is 642978, while the sum is 50.

The square root of 6993797 is about 2644.5787944397. The cubic root of 6993797 is about 191.2365972352.

The spelling of 6993797 in words is "six million, nine hundred ninety-three thousand, seven hundred ninety-seven".