387984983 has 2 divisors, whose sum is σ = 387984984. Its totient is φ = 387984982.

The previous prime is 387984979. The next prime is 387985019. The reversal of 387984983 is 389489783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 387984983 - 2² = 387984979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387984913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193992491 + 193992492.

It is an arithmetic number, because the mean of its divisors is an integer number (193992492).

Almost surely, 2^387984983 is an apocalyptic number.

387984983 is a deficient number, since it is larger than the sum of its proper divisors (1).

387984983 is an equidigital number, since it uses as much as digits as its factorization.

387984983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 59.

The square root of 387984983 is about 19697.3344135698. The cubic root of 387984983 is about 729.3538931916.

The spelling of 387984983 in words is "three hundred eighty-seven million, nine hundred eighty-four thousand, nine hundred eighty-three".