6736309421 has 4 divisors (see below), whose sum is σ = 6745425600. Its totient is φ = 6727193244.

The previous prime is 6736309417. The next prime is 6736309439. The reversal of 6736309421 is 1249036376.

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 6736309421 - 2² = 6736309417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6736309121) 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, 4556981 + ... + 4558458.

It is an arithmetic number, because the mean of its divisors is an integer number (1686356400).

Almost surely, 2^6736309421 is an apocalyptic number.

It is an amenable number.

6736309421 is a deficient number, since it is larger than the sum of its proper divisors (9116179).

6736309421 is an equidigital number, since it uses as much as digits as its factorization.

6736309421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116178.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 6736309421 is about 82075.0231251871. The cubic root of 6736309421 is about 1888.6030027292.

The spelling of 6736309421 in words is "six billion, seven hundred thirty-six million, three hundred nine thousand, four hundred twenty-one".