380647 has 4 divisors (see below), whose sum is σ = 403056. Its totient is φ = 358240.

The previous prime is 380641. The next prime is 380651. The reversal of 380647 is 746083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380647 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 (380641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11179 + ... + 11212.

It is an arithmetic number, because the mean of its divisors is an integer number (100764).

2³⁸⁰⁶⁴⁷ is an apocalyptic number.

380647 is a deficient number, since it is larger than the sum of its proper divisors (22409).

380647 is a wasteful number, since it uses less digits than its factorization.

380647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22408.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 380647 is about 616.9659634048. The cubic root of 380647 is about 72.4726492155.

The spelling of 380647 in words is "three hundred eighty thousand, six hundred forty-seven".