720916311 has 8 divisors (see below), whose sum is σ = 964294000. Its totient is φ = 479074752.

The previous prime is 720916289. The next prime is 720916351. The reversal of 720916311 is 113619027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720916311 - 2⁵ = 720916279 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 (720916351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382936 + ... + 384813.

It is an arithmetic number, because the mean of its divisors is an integer number (120536750).

Almost surely, 2^720916311 is an apocalyptic number.

720916311 is a deficient number, since it is larger than the sum of its proper divisors (243377689).

720916311 is a wasteful number, since it uses less digits than its factorization.

720916311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768065.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 720916311 is about 26849.8847483560. The cubic root of 720916311 is about 896.6610066913.

The spelling of 720916311 in words is "seven hundred twenty million, nine hundred sixteen thousand, three hundred eleven".