3879421225 has 9 divisors (see below), whose sum is σ = 4810868517. Its totient is φ = 3103287840.

The previous prime is 3879421223. The next prime is 3879421229. The reversal of 3879421225 is 5221249783.

The square root of 3879421225 is 62285.

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

It can be written as a sum of positive squares in 4 ways, for example, as 168662169 + 3710759056 = 12987^2 + 60916^2 .

It is not a de Polignac number, because 3879421225 - 2¹ = 3879421223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3879421223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 305197 + ... + 317653.

Almost surely, 2^3879421225 is an apocalyptic number.

3879421225 is the 62285-th square number.

3879421225 is the 31143-rd centered octagonal number.

It is an amenable number.

3879421225 is a deficient number, since it is larger than the sum of its proper divisors (931447292).

3879421225 is an frugal number, since it uses more digits than its factorization.

3879421225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24924 (or 12462 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The cubic root of 3879421225 is about 1571.2874647697.

It can be divided in two parts, 3879 and 421225, that added together give a square (425104 = 652²).

The spelling of 3879421225 in words is "three billion, eight hundred seventy-nine million, four hundred twenty-one thousand, two hundred twenty-five".