6737230721 has 16 divisors (see below), whose sum is σ = 7333173120. Its totient is φ = 6152509440.

The previous prime is 6737230697. The next prime is 6737230723. The reversal of 6737230721 is 1270327376.

It is a cyclic number.

It is not a de Polignac number, because 6737230721 - 2⁶ = 6737230657 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6737230723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1884866 + ... + 1888436.

It is an arithmetic number, because the mean of its divisors is an integer number (458323320).

Almost surely, 2^6737230721 is an apocalyptic number.

It is an amenable number.

6737230721 is a deficient number, since it is larger than the sum of its proper divisors (595942399).

6737230721 is a wasteful number, since it uses less digits than its factorization.

6737230721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 6737230721 is about 82080.6354812144. The cubic root of 6737230721 is about 1888.6890978752.

The spelling of 6737230721 in words is "six billion, seven hundred thirty-seven million, two hundred thirty thousand, seven hundred twenty-one".