770640009 has 8 divisors (see below), whose sum is σ = 1027711392. Its totient is φ = 513664320.

The previous prime is 770639993. The next prime is 770640011. The reversal of 770640009 is 900046077.

770640009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 770640009 - 2⁴ = 770639993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (770640089) 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, 2352 + ... + 39329.

It is an arithmetic number, because the mean of its divisors is an integer number (128463924).

Almost surely, 2^770640009 is an apocalyptic number.

It is an amenable number.

770640009 is a deficient number, since it is larger than the sum of its proper divisors (257071383).

770640009 is a wasteful number, since it uses less digits than its factorization.

770640009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47847.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 770640009 is about 27760.4036173828. The cubic root of 770640009 is about 916.8195189442.

The spelling of 770640009 in words is "seven hundred seventy million, six hundred forty thousand, nine".