709225989 has 8 divisors (see below), whose sum is σ = 945892320. Its totient is φ = 472688496.

The previous prime is 709225987. The next prime is 709226003. The reversal of 709225989 is 989522907.

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

It is not a de Polignac number, because 709225989 - 2¹ = 709225987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709225981) 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, 18534 + ... + 41975.

It is an arithmetic number, because the mean of its divisors is an integer number (118236540).

Almost surely, 2^709225989 is an apocalyptic number.

It is an amenable number.

709225989 is a deficient number, since it is larger than the sum of its proper divisors (236666331).

709225989 is a wasteful number, since it uses less digits than its factorization.

709225989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64419.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 709225989 is about 26631.2971708101. The cubic root of 709225989 is about 891.7878420037.

The spelling of 709225989 in words is "seven hundred nine million, two hundred twenty-five thousand, nine hundred eighty-nine".