6694036949 has 4 divisors (see below), whose sum is σ = 6694839360. Its totient is φ = 6693234540.

The previous prime is 6694036919. The next prime is 6694036961. The reversal of 6694036949 is 9496304966.

It is a happy number.

6694036949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6694036949 - 2²⁰ = 6692988373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6694036894 and 6694036903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694036919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388559 + ... + 405420.

It is an arithmetic number, because the mean of its divisors is an integer number (1673709840).

Almost surely, 2^6694036949 is an apocalyptic number.

It is an amenable number.

6694036949 is a deficient number, since it is larger than the sum of its proper divisors (802411).

6694036949 is an equidigital number, since it uses as much as digits as its factorization.

6694036949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802410.

The product of its (nonzero) digits is 7558272, while the sum is 56.

The square root of 6694036949 is about 81817.0944790879. The cubic root of 6694036949 is about 1884.6441831566.

The spelling of 6694036949 in words is "six billion, six hundred ninety-four million, thirty-six thousand, nine hundred forty-nine".