380663 has 4 divisors (see below), whose sum is σ = 382848. Its totient is φ = 378480.

The previous prime is 380657. The next prime is 380707. The reversal of 380663 is 366083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366083 = 47 ⋅7789.

It is a cyclic number.

It is not a de Polignac number, because 380663 - 2¹⁶ = 315127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380623) 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, 806 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (95712).

2³⁸⁰⁶⁶³ is an apocalyptic number.

380663 is a deficient number, since it is larger than the sum of its proper divisors (2185).

380663 is a wasteful number, since it uses less digits than its factorization.

380663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 380663 is about 616.9789299482. The cubic root of 380663 is about 72.4736646323.

Adding to 380663 its sum of digits (26), we get a square (380689 = 617²).

It can be divided in two parts, 3806 and 63, that multiplied together give a triangular number (239778 = T₆₉₂).

The spelling of 380663 in words is "three hundred eighty thousand, six hundred sixty-three".