3925565 has 16 divisors (see below), whose sum is σ = 5477760. Its totient is φ = 2644800.

The previous prime is 3925553. The next prime is 3925583. The reversal of 3925565 is 5655293.

It is not a de Polignac number, because 3925565 - 2⁴ = 3925549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115 + ... + 3015.

It is an arithmetic number, because the mean of its divisors is an integer number (342360).

Almost surely, 2^3925565 is an apocalyptic number.

3925565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3925565 is a deficient number, since it is larger than the sum of its proper divisors (1552195).

3925565 is a wasteful number, since it uses less digits than its factorization.

3925565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972.

The product of its digits is 40500, while the sum is 35.

The square root of 3925565 is about 1981.3038636211. The cubic root of 3925565 is about 157.7492819036.

The spelling of 3925565 in words is "three million, nine hundred twenty-five thousand, five hundred sixty-five".