709144099 has 4 divisors (see below), whose sum is σ = 711704464. Its totient is φ = 706583736.

The previous prime is 709144097. The next prime is 709144157. The reversal of 709144099 is 990441907.

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

It is a cyclic number.

It is not a de Polignac number, because 709144099 - 2¹ = 709144097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709144097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279767 + ... + 1280320.

It is an arithmetic number, because the mean of its divisors is an integer number (177926116).

Almost surely, 2^709144099 is an apocalyptic number.

709144099 is a deficient number, since it is larger than the sum of its proper divisors (2560365).

709144099 is a wasteful number, since it uses less digits than its factorization.

709144099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560364.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 709144099 is about 26629.7596496852. The cubic root of 709144099 is about 891.7535175813.

The spelling of 709144099 in words is "seven hundred nine million, one hundred forty-four thousand, ninety-nine".