3870706225 has 27 divisors (see below), whose sum is σ = 5026721889. Its totient is φ = 2956456800.

The previous prime is 3870706211. The next prime is 3870706249. The reversal of 3870706225 is 5226070783.

The square root of 3870706225 is 62215.

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

3870706225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 228342321 + 3642363904 = 15111^2 + 60352^2 .

It is not a de Polignac number, because 3870706225 - 2¹³ = 3870698033 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7154455 + ... + 7154995.

Almost surely, 2^3870706225 is an apocalyptic number.

3870706225 is the 62215-th square number.

3870706225 is the 31108-th centered octagonal number.

It is an amenable number.

3870706225 is a deficient number, since it is larger than the sum of its proper divisors (1156015664).

3870706225 is an frugal number, since it uses more digits than its factorization.

3870706225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The cubic root of 3870706225 is about 1570.1099663330.

The spelling of 3870706225 in words is "three billion, eight hundred seventy million, seven hundred six thousand, two hundred twenty-five".