3784878433 has 16 divisors (see below), whose sum is σ = 4422140800. Its totient is φ = 3238090128.

The previous prime is 3784878403. The next prime is 3784878439. The reversal of 3784878433 is 3348784873.

It is not a de Polignac number, because 3784878433 - 2⁵ = 3784878401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3784878439) 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, 177535 + ... + 197707.

It is an arithmetic number, because the mean of its divisors is an integer number (276383800).

Almost surely, 2^3784878433 is an apocalyptic number.

It is an amenable number.

3784878433 is a deficient number, since it is larger than the sum of its proper divisors (637262367).

3784878433 is an equidigital number, since it uses as much as digits as its factorization.

3784878433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20741 (or 20727 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 55.

The square root of 3784878433 is about 61521.3656626704. The cubic root of 3784878433 is about 1558.4180809513.

It can be divided in two parts, 37848 and 78433, that added together give a square (116281 = 341²).

The spelling of 3784878433 in words is "three billion, seven hundred eighty-four million, eight hundred seventy-eight thousand, four hundred thirty-three".