387649675 has 12 divisors (see below), whose sum is σ = 549355216. Its totient is φ = 265816800.

The previous prime is 387649673. The next prime is 387649679. The reversal of 387649675 is 576946783.

It is a happy number.

It is not a de Polignac number, because 387649675 - 2¹ = 387649673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387649673) 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 11 ways as a sum of consecutive naturals, for example, 1107396 + ... + 1107745.

Almost surely, 2^387649675 is an apocalyptic number.

387649675 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

387649675 is a deficient number, since it is larger than the sum of its proper divisors (161705541).

387649675 is a wasteful number, since it uses less digits than its factorization.

387649675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215158 (or 2215153 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The square root of 387649675 is about 19688.8210667881. The cubic root of 387649675 is about 729.1437229606.

The spelling of 387649675 in words is "three hundred eighty-seven million, six hundred forty-nine thousand, six hundred seventy-five".