387658 has 8 divisors (see below), whose sum is σ = 584640. Its totient is φ = 192780.

The previous prime is 387641. The next prime is 387659. The reversal of 387658 is 856783.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (387659) by changing a digit.

387658 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (73080).

2³⁸⁷⁶⁵⁸ is an apocalyptic number.

387658 is a deficient number, since it is larger than the sum of its proper divisors (196982).

387658 is a wasteful number, since it uses less digits than its factorization.

387658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052.

The product of its digits is 40320, while the sum is 37.

The square root of 387658 is about 622.6218756195. The cubic root of 387658 is about 72.9148942517.

The spelling of 387658 in words is "three hundred eighty-seven thousand, six hundred fifty-eight".