3961222827 has 4 divisors (see below), whose sum is σ = 5281630440. Its totient is φ = 2640815216.

The previous prime is 3961222801. The next prime is 3961222879. The reversal of 3961222827 is 7282221693.

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

It is a cyclic number.

It is not a de Polignac number, because 3961222827 - 2⁶ = 3961222763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3961222427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660203802 + ... + 660203807.

It is an arithmetic number, because the mean of its divisors is an integer number (1320407610).

Almost surely, 2^3961222827 is an apocalyptic number.

3961222827 is a deficient number, since it is larger than the sum of its proper divisors (1320407613).

3961222827 is a wasteful number, since it uses less digits than its factorization.

3961222827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320407612.

The product of its digits is 145152, while the sum is 42.

The square root of 3961222827 is about 62938.2461385762. The cubic root of 3961222827 is about 1582.2548091382.

The spelling of 3961222827 in words is "three billion, nine hundred sixty-one million, two hundred twenty-two thousand, eight hundred twenty-seven".