3784012905 has 16 divisors (see below), whose sum is σ = 6055470720. Its totient is φ = 2017790208.

The previous prime is 3784012871. The next prime is 3784012907. The reversal of 3784012905 is 5092104873.

3784012905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3784012905 - 2¹⁴ = 3783996521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3784012907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84036 + ... + 120954.

It is an arithmetic number, because the mean of its divisors is an integer number (378466920).

Almost surely, 2^3784012905 is an apocalyptic number.

It is an amenable number.

3784012905 is a deficient number, since it is larger than the sum of its proper divisors (2271457815).

3784012905 is a wasteful number, since it uses less digits than its factorization.

3784012905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43760.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 3784012905 is about 61514.3308912647. The cubic root of 3784012905 is about 1558.2992786048.

The spelling of 3784012905 in words is "three billion, seven hundred eighty-four million, twelve thousand, nine hundred five".