6722703731 has 4 divisors (see below), whose sum is σ = 6724971000. Its totient is φ = 6720436464.

The previous prime is 6722703727. The next prime is 6722703739. The reversal of 6722703731 is 1373072276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6722703731 - 2² = 6722703727 is a prime.

It is a super-2 number, since 2×6722703731² = 90389490909602640722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6722703739) 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, 1129181 + ... + 1135118.

It is an arithmetic number, because the mean of its divisors is an integer number (1681242750).

Almost surely, 2^6722703731 is an apocalyptic number.

6722703731 is a deficient number, since it is larger than the sum of its proper divisors (2267269).

6722703731 is a wasteful number, since it uses less digits than its factorization.

6722703731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267268.

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

The square root of 6722703731 is about 81992.0955397531. The cubic root of 6722703731 is about 1887.3306410388.

The spelling of 6722703731 in words is "six billion, seven hundred twenty-two million, seven hundred three thousand, seven hundred thirty-one".