3867565 has 24 divisors (see below), whose sum is σ = 5270400. Its totient is φ = 2718144.

The previous prime is 3867557. The next prime is 3867587. The reversal of 3867565 is 5657683.

It is not a de Polignac number, because 3867565 - 2³ = 3867557 is a prime.

Its product of digits (151200) is a multiple of the sum of its prime divisors (240).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19336 + ... + 19534.

It is an arithmetic number, because the mean of its divisors is an integer number (219600).

Almost surely, 2^3867565 is an apocalyptic number.

It is an amenable number.

3867565 is a deficient number, since it is larger than the sum of its proper divisors (1402835).

3867565 is a wasteful number, since it uses less digits than its factorization.

3867565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 240 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 3867565 is about 1966.6125698775. The cubic root of 3867565 is about 156.9685116777.

The spelling of 3867565 in words is "three million, eight hundred sixty-seven thousand, five hundred sixty-five".