720611319 has 4 divisors (see below), whose sum is σ = 960815096. Its totient is φ = 480407544.

The previous prime is 720611263. The next prime is 720611383. The reversal of 720611319 is 913116027.

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

It is not a de Polignac number, because 720611319 - 2¹⁹ = 720087031 is a prime.

It is a super-2 number, since 2×720611319² = 1038561346141839522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720611719) 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, 120101884 + ... + 120101889.

It is an arithmetic number, because the mean of its divisors is an integer number (240203774).

Almost surely, 2^720611319 is an apocalyptic number.

720611319 is a deficient number, since it is larger than the sum of its proper divisors (240203777).

720611319 is a wasteful number, since it uses less digits than its factorization.

720611319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240203776.

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

The square root of 720611319 is about 26844.2045700743. The cubic root of 720611319 is about 896.5345412454.

The spelling of 720611319 in words is "seven hundred twenty million, six hundred eleven thousand, three hundred nineteen".