789315009 has 16 divisors (see below), whose sum is σ = 1230738432. Its totient is φ = 440547408.

The previous prime is 789314971. The next prime is 789315013. The reversal of 789315009 is 900513987.

It is a happy number.

It is not a de Polignac number, because 789315009 - 2¹¹ = 789312961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (789315089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436149 + ... + 437954.

It is an arithmetic number, because the mean of its divisors is an integer number (76921152).

Almost surely, 2^789315009 is an apocalyptic number.

It is an amenable number.

789315009 is a deficient number, since it is larger than the sum of its proper divisors (441423423).

789315009 is a wasteful number, since it uses less digits than its factorization.

789315009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874156.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 789315009 is about 28094.7505594906. The cubic root of 789315009 is about 924.1662841887.

The spelling of 789315009 in words is "seven hundred eighty-nine million, three hundred fifteen thousand, nine".