387838 has 24 divisors (see below), whose sum is σ = 685224. Its totient is φ = 163200.

The previous prime is 387799. The next prime is 387839. The reversal of 387838 is 838783.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 387797 and 387806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6328 + ... + 6388.

It is an arithmetic number, because the mean of its divisors is an integer number (28551).

2³⁸⁷⁸³⁸ is an apocalyptic number.

387838 is a deficient number, since it is larger than the sum of its proper divisors (297386).

387838 is a wasteful number, since it uses less digits than its factorization.

387838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 91 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 387838 is about 622.7664088565. The cubic root of 387838 is about 72.9261779520.

It can be divided in two parts, 3878 and 38, that added together give a triangular number (3916 = T₈₈).

The spelling of 387838 in words is "three hundred eighty-seven thousand, eight hundred thirty-eight".