387897 has 8 divisors (see below), whose sum is σ = 520320. Its totient is φ = 257040.

The previous prime is 387857. The next prime is 387911. The reversal of 387897 is 798783.

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

It is not a de Polignac number, because 387897 - 2⁸ = 387641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 987.

It is an arithmetic number, because the mean of its divisors is an integer number (65040).

2³⁸⁷⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

387897 is a deficient number, since it is larger than the sum of its proper divisors (132423).

387897 is a wasteful number, since it uses less digits than its factorization.

387897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its digits is 84672, while the sum is 42.

The square root of 387897 is about 622.8137763409. The cubic root of 387897 is about 72.9298757385.

The spelling of 387897 in words is "three hundred eighty-seven thousand, eight hundred ninety-seven".