3961704145 has 24 divisors (see below), whose sum is σ = 5679693864. Its totient is φ = 2643169536.

The previous prime is 3961704143. The next prime is 3961704163. The reversal of 3961704145 is 5414071693.

3961704145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 280127169 + 3681576976 = 16737^2 + 60676^2 .

It is not a de Polignac number, because 3961704145 - 2¹ = 3961704143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3961704098 and 3961704107.

It is not an unprimeable number, because it can be changed into a prime (3961704143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209452 + ... + 227581.

It is an arithmetic number, because the mean of its divisors is an integer number (236653911).

Almost surely, 2^3961704145 is an apocalyptic number.

3961704145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3961704145 is a deficient number, since it is larger than the sum of its proper divisors (1717989719).

3961704145 is a wasteful number, since it uses less digits than its factorization.

3961704145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437089 (or 437082 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 3961704145 is about 62942.0697546561. The cubic root of 3961704145 is about 1582.3188917805.

The spelling of 3961704145 in words is "three billion, nine hundred sixty-one million, seven hundred four thousand, one hundred forty-five".