387791541 has 12 divisors (see below), whose sum is σ = 560758380. Its totient is φ = 258243840.

The previous prime is 387791533. The next prime is 387791543. The reversal of 387791541 is 145197783.

387791541 is a `hidden beast` number, since 38 + 7 + 79 + 1 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103734225 + 284057316 = 10185^2 + 16854^2 .

It is not a de Polignac number, because 387791541 - 2³ = 387791533 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387791543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14830 + ... + 31551.

It is an arithmetic number, because the mean of its divisors is an integer number (46729865).

Almost surely, 2^387791541 is an apocalyptic number.

It is an amenable number.

387791541 is a deficient number, since it is larger than the sum of its proper divisors (172966839).

387791541 is a wasteful number, since it uses less digits than its factorization.

387791541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47316 (or 47313 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 387791541 is about 19692.4234415168. The cubic root of 387791541 is about 729.2326590061.

The spelling of 387791541 in words is "three hundred eighty-seven million, seven hundred ninety-one thousand, five hundred forty-one".