386997 has 8 divisors (see below), whose sum is σ = 555744. Its totient is φ = 238128.

The previous prime is 386993. The next prime is 387007. The reversal of 386997 is 799683.

It is a happy number.

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

It is not a de Polignac number, because 386997 - 2² = 386993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386993) 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 in 7 ways as a sum of consecutive naturals, for example, 4923 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (69468).

2³⁸⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

386997 is a deficient number, since it is larger than the sum of its proper divisors (168747).

386997 is a wasteful number, since it uses less digits than its factorization.

386997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9939.

The product of its digits is 81648, while the sum is 42.

The square root of 386997 is about 622.0908293810. The cubic root of 386997 is about 72.8734280068.

Subtracting 386997 from its reverse (799683), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 386997 in words is "three hundred eighty-six thousand, nine hundred ninety-seven".