386447 has 4 divisors (see below), whose sum is σ = 387840. Its totient is φ = 385056.

The previous prime is 386437. The next prime is 386471. The reversal of 386447 is 744683.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 386447 - 2⁴ = 386431 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386437) 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, 122 + ... + 887.

It is an arithmetic number, because the mean of its divisors is an integer number (96960).

2³⁸⁶⁴⁴⁷ is an apocalyptic number.

386447 is a deficient number, since it is larger than the sum of its proper divisors (1393).

386447 is a wasteful number, since it uses less digits than its factorization.

386447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its digits is 16128, while the sum is 32.

The square root of 386447 is about 621.6486145726. The cubic root of 386447 is about 72.8388890760.

The spelling of 386447 in words is "three hundred eighty-six thousand, four hundred forty-seven".