6904794749 has 4 divisors (see below), whose sum is σ = 7310959164. Its totient is φ = 6498630336.

The previous prime is 6904794733. The next prime is 6904794751. The reversal of 6904794749 is 9474974096.

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 5416224025 + 1488570724 = 73595^2 + 38582^2 .

It is a cyclic number.

It is not a de Polignac number, because 6904794749 - 2⁴ = 6904794733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6904794709) 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, 203082182 + ... + 203082215.

It is an arithmetic number, because the mean of its divisors is an integer number (1827739791).

Almost surely, 2^6904794749 is an apocalyptic number.

It is an amenable number.

6904794749 is a deficient number, since it is larger than the sum of its proper divisors (406164415).

6904794749 is a wasteful number, since it uses less digits than its factorization.

6904794749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406164414.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The square root of 6904794749 is about 83095.0946145439. The cubic root of 6904794749 is about 1904.2191327546.

The spelling of 6904794749 in words is "six billion, nine hundred four million, seven hundred ninety-four thousand, seven hundred forty-nine".