3871025 has 6 divisors (see below), whose sum is σ = 4800102. Its totient is φ = 3096800.

The previous prime is 3871013. The next prime is 3871039. The reversal of 3871025 is 5201783.

It can be written as a sum of positive squares in 3 ways, for example, as 1936 + 3869089 = 44^2 + 1967^2 .

It is not a de Polignac number, because 3871025 - 2⁴ = 3871009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3870985 and 3871003.

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, 77396 + ... + 77445.

It is an arithmetic number, because the mean of its divisors is an integer number (800017).

Almost surely, 2^3871025 is an apocalyptic number.

It is an amenable number.

3871025 is a deficient number, since it is larger than the sum of its proper divisors (929077).

3871025 is a wasteful number, since it uses less digits than its factorization.

3871025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154851 (or 154846 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 3871025 is about 1967.4920584338. The cubic root of 3871025 is about 157.0153067689.

The spelling of 3871025 in words is "three million, eight hundred seventy-one thousand, twenty-five".