387980 has 24 divisors (see below), whose sum is σ = 858480. Its totient is φ = 146880.

The previous prime is 387977. The next prime is 388009. The reversal of 387980 is 89783.

It is a self number, because there is not a number n which added to its sum of digits gives 387980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131 + ... + 890.

It is an arithmetic number, because the mean of its divisors is an integer number (35770).

2³⁸⁷⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

387980 is an abundant number, since it is smaller than the sum of its proper divisors (470500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387980 is a wasteful number, since it uses less digits than its factorization.

387980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 387980 is about 622.8804058565. The cubic root of 387980 is about 72.9350770746.

The spelling of 387980 in words is "three hundred eighty-seven thousand, nine hundred eighty".