387611968 has 28 divisors (see below), whose sum is σ = 814414932. Its totient is φ = 182405120.

The previous prime is 387611927. The next prime is 387611971. The reversal of 387611968 is 869116783.

It can be written as a sum of positive squares in 2 ways, for example, as 172344384 + 215267584 = 13128^2 + 14672^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177043 + ... + 179218.

Almost surely, 2^387611968 is an apocalyptic number.

It is an amenable number.

387611968 is an abundant number, since it is smaller than the sum of its proper divisors (426802964).

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

387611968 is a wasteful number, since it uses less digits than its factorization.

387611968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356290 (or 356280 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 387611968 is about 19687.8634696607. The cubic root of 387611968 is about 729.1200807259.

The spelling of 387611968 in words is "three hundred eighty-seven million, six hundred eleven thousand, nine hundred sixty-eight".