380663617 has 4 divisors (see below), whose sum is σ = 380702916. Its totient is φ = 380624320.

The previous prime is 380663611. The next prime is 380663627. The reversal of 380663617 is 716366083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 140754496 + 239909121 = 11864^2 + 15489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380663617 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380663617.

It is not an unprimeable number, because it can be changed into a prime (380663611) 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, 6333 + ... + 28309.

It is an arithmetic number, because the mean of its divisors is an integer number (95175729).

Almost surely, 2^380663617 is an apocalyptic number.

It is an amenable number.

380663617 is a deficient number, since it is larger than the sum of its proper divisors (39299).

380663617 is a wasteful number, since it uses less digits than its factorization.

380663617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39298.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 380663617 is about 19510.6026816190. The cubic root of 380663617 is about 724.7370378876.

The spelling of 380663617 in words is "three hundred eighty million, six hundred sixty-three thousand, six hundred seventeen".