719072089 has 4 divisors (see below), whose sum is σ = 723652324. Its totient is φ = 714491856.

The previous prime is 719072083. The next prime is 719072093. The reversal of 719072089 is 980270917.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 195440400 + 523631689 = 13980^2 + 22883^2 .

It is a cyclic number.

It is not a de Polignac number, because 719072089 - 2¹¹ = 719070041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (719072083) 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, 2289882 + ... + 2290195.

It is an arithmetic number, because the mean of its divisors is an integer number (180913081).

Almost surely, 2^719072089 is an apocalyptic number.

It is an amenable number.

719072089 is a deficient number, since it is larger than the sum of its proper divisors (4580235).

719072089 is a wasteful number, since it uses less digits than its factorization.

719072089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580234.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 719072089 is about 26815.5195549145. The cubic root of 719072089 is about 895.8957518654.

The spelling of 719072089 in words is "seven hundred nineteen million, seventy-two thousand, eighty-nine".