2685765 has 8 divisors (see below), whose sum is σ = 4297248. Its totient is φ = 1432400.

The previous prime is 2685757. The next prime is 2685803. The reversal of 2685765 is 5675862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2685765 - 2³ = 2685757 is a prime.

It is an Ulam number.

2685765 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89511 + ... + 89540.

It is an arithmetic number, because the mean of its divisors is an integer number (537156).

2^2685765 is an apocalyptic number.

It is an amenable number.

2685765 is a deficient number, since it is larger than the sum of its proper divisors (1611483).

2685765 is a wasteful number, since it uses less digits than its factorization.

2685765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179059.

The product of its digits is 100800, while the sum is 39.

The square root of 2685765 is about 1638.8303756033. The cubic root of 2685765 is about 139.0025188026.

The spelling of 2685765 in words is "two million, six hundred eighty-five thousand, seven hundred sixty-five".