387771748 has 24 divisors (see below), whose sum is σ = 835201472. Its totient is φ = 153404064.

The previous prime is 387771719. The next prime is 387771749. The reversal of 387771748 is 847177783.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 387771695 and 387771704.

It is not an unprimeable number, because it can be changed into a prime (387771749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532290 + ... + 533017.

Almost surely, 2^387771748 is an apocalyptic number.

It is an amenable number.

387771748 is an abundant number, since it is smaller than the sum of its proper divisors (447429724).

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

387771748 is a wasteful number, since it uses less digits than its factorization.

387771748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065331 (or 1065329 counting only the distinct ones).

The product of its digits is 1843968, while the sum is 52.

The square root of 387771748 is about 19691.9208814173. The cubic root of 387771748 is about 729.2202520417.

It can be divided in two parts, 3877 and 71748, that added together give a square (75625 = 275²).

The spelling of 387771748 in words is "three hundred eighty-seven million, seven hundred seventy-one thousand, seven hundred forty-eight".