387966499 has 2 divisors, whose sum is σ = 387966500. Its totient is φ = 387966498.

The previous prime is 387966487. The next prime is 387966517. The reversal of 387966499 is 994669783.

It is a weak prime.

It is an emirp because it is prime and its reverse (994669783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 387966499 - 2¹⁵ = 387933731 is a prime.

It is not a weakly prime, because it can be changed into another prime (387966409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193983249 + 193983250.

It is an arithmetic number, because the mean of its divisors is an integer number (193983250).

Almost surely, 2^387966499 is an apocalyptic number.

387966499 is a deficient number, since it is larger than the sum of its proper divisors (1).

387966499 is an equidigital number, since it uses as much as digits as its factorization.

387966499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 61.

The square root of 387966499 is about 19696.8652074385. The cubic root of 387966499 is about 729.3423106201.

The spelling of 387966499 in words is "three hundred eighty-seven million, nine hundred sixty-six thousand, four hundred ninety-nine".