6904907389 has 4 divisors (see below), whose sum is σ = 6992311360. Its totient is φ = 6817503420.

The previous prime is 6904907351. The next prime is 6904907413. The reversal of 6904907389 is 9837094096.

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 6904907389 - 2²³ = 6896518781 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 (6904907309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43701867 + ... + 43702024.

It is an arithmetic number, because the mean of its divisors is an integer number (1748077840).

Almost surely, 2^6904907389 is an apocalyptic number.

It is an amenable number.

6904907389 is a deficient number, since it is larger than the sum of its proper divisors (87403971).

6904907389 is an equidigital number, since it uses as much as digits as its factorization.

6904907389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87403970.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 6904907389 is about 83095.7723894543. The cubic root of 6904907389 is about 1904.2294873987.

The spelling of 6904907389 in words is "six billion, nine hundred four million, nine hundred seven thousand, three hundred eighty-nine".