3861725 has 12 divisors (see below), whose sum is σ = 5472864. Its totient is φ = 2647920.

The previous prime is 3861721. The next prime is 3861743. The reversal of 3861725 is 5271683.

It is a happy number.

It is not a de Polignac number, because 3861725 - 2² = 3861721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3861691 and 3861700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10859 + ... + 11208.

It is an arithmetic number, because the mean of its divisors is an integer number (456072).

Almost surely, 2^3861725 is an apocalyptic number.

3861725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3861725 is a deficient number, since it is larger than the sum of its proper divisors (1611139).

3861725 is a wasteful number, since it uses less digits than its factorization.

3861725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22084 (or 22079 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 3861725 is about 1965.1272223447. The cubic root of 3861725 is about 156.8894647065.

The spelling of 3861725 in words is "three million, eight hundred sixty-one thousand, seven hundred twenty-five".