720727027 has 4 divisors (see below), whose sum is σ = 721243600. Its totient is φ = 720210456.

The previous prime is 720727003. The next prime is 720727031.

It is a happy number.

720727027 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720727027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720726983 and 720727001.

It is not an unprimeable number, because it can be changed into a prime (720727327) 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, 256188 + ... + 258985.

It is an arithmetic number, because the mean of its divisors is an integer number (180310900).

Almost surely, 2^720727027 is an apocalyptic number.

720727027 is a deficient number, since it is larger than the sum of its proper divisors (516573).

720727027 is a wasteful number, since it uses less digits than its factorization.

720727027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516572.

The product of its (nonzero) digits is 19208, while the sum is 34.

The square root of 720727027 is about 26846.3596601103. The cubic root of 720727027 is about 896.5825239624.

The spelling of 720727027 in words is "seven hundred twenty million, seven hundred twenty-seven thousand, twenty-seven".