320117777 has 4 divisors (see below), whose sum is σ = 365848896. Its totient is φ = 274386660.

The previous prime is 320117753. The next prime is 320117779. The reversal of 320117777 is 777711023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320117777 - 2¹⁶ = 320052241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320117779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22865549 + ... + 22865562.

It is an arithmetic number, because the mean of its divisors is an integer number (91462224).

Almost surely, 2^320117777 is an apocalyptic number.

It is an amenable number.

320117777 is a deficient number, since it is larger than the sum of its proper divisors (45731119).

320117777 is an equidigital number, since it uses as much as digits as its factorization.

320117777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45731118.

The product of its (nonzero) digits is 14406, while the sum is 35.

The square root of 320117777 is about 17891.8354843767. The cubic root of 320117777 is about 684.0742833098.

The spelling of 320117777 in words is "three hundred twenty million, one hundred seventeen thousand, seven hundred seventy-seven".