3804545761 has 3 divisors (see below), whose sum is σ = 3804607443. Its totient is φ = 3804484080.

The previous prime is 3804545749. The next prime is 3804545779. The reversal of 3804545761 is 1675454083.

The square root of 3804545761 is 61681.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2968179361 + 836366400 = 54481^2 + 28920^2 .

It is not a de Polignac number, because 3804545761 - 2⁵ = 3804545729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3804545561) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 30841 + ... + 92521.

It is an arithmetic number, because the mean of its divisors is an integer number (1268202481).

Almost surely, 2^3804545761 is an apocalyptic number.

3804545761 is the 61681-st square number.

3804545761 is the 30841-st centered octagonal number.

It is an amenable number.

3804545761 is a deficient number, since it is larger than the sum of its proper divisors (61682).

3804545761 is an frugal number, since it uses more digits than its factorization.

3804545761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123362 (or 61681 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The cubic root of 3804545761 is about 1561.1127499436.

The spelling of 3804545761 in words is "three billion, eight hundred four million, five hundred forty-five thousand, seven hundred sixty-one".