387671 has 4 divisors (see below), whose sum is σ = 390600. Its totient is φ = 384744.

The previous prime is 387659. The next prime is 387677. The reversal of 387671 is 176783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176783 = 17 ⋅10399.

It is a cyclic number.

It is not a de Polignac number, because 387671 - 2¹⁰ = 386647 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 (387677) 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, 1256 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2³⁸⁷⁶⁷¹ is an apocalyptic number.

387671 is a deficient number, since it is larger than the sum of its proper divisors (2929).

387671 is a wasteful number, since it uses less digits than its factorization.

387671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928.

The product of its digits is 7056, while the sum is 32.

The square root of 387671 is about 622.6323152552. The cubic root of 387671 is about 72.9157093026.

The spelling of 387671 in words is "three hundred eighty-seven thousand, six hundred seventy-one".