380117809 has 4 divisors (see below), whose sum is σ = 380709616. Its totient is φ = 379526004.

The previous prime is 380117747. The next prime is 380117833. The reversal of 380117809 is 908711083.

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 380117809 - 2¹¹ = 380115761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380117869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294939 + ... + 296224.

It is an arithmetic number, because the mean of its divisors is an integer number (95177404).

Almost surely, 2^380117809 is an apocalyptic number.

It is an amenable number.

380117809 is a deficient number, since it is larger than the sum of its proper divisors (591807).

380117809 is an equidigital number, since it uses as much as digits as its factorization.

380117809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591806.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 380117809 is about 19496.6101925437. The cubic root of 380117809 is about 724.3904882784.

The spelling of 380117809 in words is "three hundred eighty million, one hundred seventeen thousand, eight hundred nine".