387778364 has 12 divisors (see below), whose sum is σ = 718530624. Its totient is φ = 182483904.

The previous prime is 387778337. The next prime is 387778397. The reversal of 387778364 is 463877783.

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, 2851244 + ... + 2851379.

It is an arithmetic number, because the mean of its divisors is an integer number (59877552).

Almost surely, 2^387778364 is an apocalyptic number.

387778364 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

387778364 is a deficient number, since it is larger than the sum of its proper divisors (330752260).

387778364 is a wasteful number, since it uses less digits than its factorization.

387778364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702644 (or 5702642 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 53.

The square root of 387778364 is about 19692.0888683755. The cubic root of 387778364 is about 729.2243992355.

The spelling of 387778364 in words is "three hundred eighty-seven million, seven hundred seventy-eight thousand, three hundred sixty-four".