3783725405 has 6 divisors (see below), whose sum is σ = 4540635546. Its totient is φ = 3026870288.

The previous prime is 3783725347. The next prime is 3783725431. The reversal of 3783725405 is 5045273873.

It can be written as a sum of positive squares in 3 ways, for example, as 201583204 + 3582142201 = 14198^2 + 59851^2 .

It is not a de Polignac number, because 3783725405 - 2¹² = 3783721309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123791 + ... + 151299.

It is an arithmetic number, because the mean of its divisors is an integer number (756772591).

Almost surely, 2^3783725405 is an apocalyptic number.

It is an amenable number.

3783725405 is a deficient number, since it is larger than the sum of its proper divisors (756910141).

3783725405 is an frugal number, since it uses more digits than its factorization.

3783725405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55023 (or 27514 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 3783725405 is about 61511.9939930417. The cubic root of 3783725405 is about 1558.2598123556.

The spelling of 3783725405 in words is "three billion, seven hundred eighty-three million, seven hundred twenty-five thousand, four hundred five".