77340009 has 16 divisors (see below), whose sum is σ = 108199424. Its totient is φ = 49075200.

The previous prime is 77339959. The next prime is 77340023. The reversal of 77340009 is 90004377.

It is not a de Polignac number, because 77340009 - 2⁷ = 77339881 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (77340049) 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 15 ways as a sum of consecutive naturals, for example, 1144 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (6762464).

Almost surely, 2^77340009 is an apocalyptic number.

It is an amenable number.

77340009 is a deficient number, since it is larger than the sum of its proper divisors (30859415).

77340009 is a wasteful number, since it uses less digits than its factorization.

77340009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 77340009 is about 8794.3168580624. The cubic root of 77340009 is about 426.0573607435.

The spelling of 77340009 in words is "seventy-seven million, three hundred forty thousand, nine".