387637412 has 12 divisors (see below), whose sum is σ = 681881676. Its totient is φ = 192814080.

The previous prime is 387637409. The next prime is 387637421. The reversal of 387637412 is 214736783.

It can be written as a sum of positive squares in 2 ways, for example, as 42198016 + 345439396 = 6496^2 + 18586^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 387637412.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 250289 + ... + 251832.

It is an arithmetic number, because the mean of its divisors is an integer number (56823473).

Almost surely, 2^387637412 is an apocalyptic number.

It is an amenable number.

387637412 is a deficient number, since it is larger than the sum of its proper divisors (294244264).

387637412 is a wasteful number, since it uses less digits than its factorization.

387637412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502318 (or 502316 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 387637412 is about 19688.5096439522. The cubic root of 387637412 is about 729.1360342455.

The spelling of 387637412 in words is "three hundred eighty-seven million, six hundred thirty-seven thousand, four hundred twelve".