6720230999 has 4 divisors (see below), whose sum is σ = 6720456864. Its totient is φ = 6720005136.

The previous prime is 6720230971. The next prime is 6720231029. The reversal of 6720230999 is 9990320276.

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 6720230999 - 2⁸ = 6720230743 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 (6720230599) 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, 60047 + ... + 130560.

It is an arithmetic number, because the mean of its divisors is an integer number (1680114216).

Almost surely, 2^6720230999 is an apocalyptic number.

6720230999 is a deficient number, since it is larger than the sum of its proper divisors (225865).

6720230999 is a wasteful number, since it uses less digits than its factorization.

6720230999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225864.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 6720230999 is about 81977.0150651998. The cubic root of 6720230999 is about 1887.0992145493.

The spelling of 6720230999 in words is "six billion, seven hundred twenty million, two hundred thirty thousand, nine hundred ninety-nine".