3782505427 has 4 divisors (see below), whose sum is σ = 3981584680. Its totient is φ = 3583426176.

The previous prime is 3782505421. The next prime is 3782505443. The reversal of 3782505427 is 7245052873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3782505427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3782505421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99539598 + ... + 99539635.

It is an arithmetic number, because the mean of its divisors is an integer number (995396170).

Almost surely, 2^3782505427 is an apocalyptic number.

3782505427 is a deficient number, since it is larger than the sum of its proper divisors (199079253).

3782505427 is a wasteful number, since it uses less digits than its factorization.

3782505427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199079252.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 3782505427 is about 61502.0766072171. The cubic root of 3782505427 is about 1558.0923189605.

The spelling of 3782505427 in words is "three billion, seven hundred eighty-two million, five hundred five thousand, four hundred twenty-seven".