3784113972 has 18 divisors (see below), whose sum is σ = 9565399298. Its totient is φ = 1261371312.

The previous prime is 3784113953. The next prime is 3784113979. The reversal of 3784113972 is 2793114873.

It can be written as a sum of positive squares in only one way, i.e., 3775610916 + 8503056 = 61446^2 + 2916^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784113979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52557103 + ... + 52557174.

Almost surely, 2^3784113972 is an apocalyptic number.

It is an amenable number.

3784113972 is an abundant number, since it is smaller than the sum of its proper divisors (5781285326).

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

3784113972 is a wasteful number, since it uses less digits than its factorization.

3784113972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105114287 (or 105114282 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 3784113972 is about 61515.1523772802. The cubic root of 3784113972 is about 1558.3131519922.

Subtracting from 3784113972 its reverse (2793114873), we obtain a palindrome (990999099).

The spelling of 3784113972 in words is "three billion, seven hundred eighty-four million, one hundred thirteen thousand, nine hundred seventy-two".