387958 has 4 divisors (see below), whose sum is σ = 581940. Its totient is φ = 193978.

The previous prime is 387953. The next prime is 387967. The reversal of 387958 is 859783.

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

It is a super-2 number, since 2×387958² = 301022819528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 387958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387953) 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 as a sum of consecutive naturals, namely, 96988 + ... + 96991.

It is an arithmetic number, because the mean of its divisors is an integer number (145485).

2³⁸⁷⁹⁵⁸ is an apocalyptic number.

387958 is a deficient number, since it is larger than the sum of its proper divisors (193982).

387958 is a wasteful number, since it uses less digits than its factorization.

387958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193981.

The product of its digits is 60480, while the sum is 40.

The square root of 387958 is about 622.8627457153. The cubic root of 387958 is about 72.9336984795.

The spelling of 387958 in words is "three hundred eighty-seven thousand, nine hundred fifty-eight".