2765287 has 8 divisors (see below), whose sum is σ = 3234176. Its totient is φ = 2314872.

The previous prime is 2765281. The next prime is 2765297. The reversal of 2765287 is 7825672.

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

It is not a de Polignac number, because 2765287 - 2¹⁵ = 2732519 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4293 + ... + 4894.

It is an arithmetic number, because the mean of its divisors is an integer number (404272).

2^2765287 is an apocalyptic number.

2765287 is a deficient number, since it is larger than the sum of its proper divisors (468889).

2765287 is an equidigital number, since it uses as much as digits as its factorization.

2765287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237.

The product of its digits is 47040, while the sum is 37.

The square root of 2765287 is about 1662.9152113081. The cubic root of 2765287 is about 140.3610916717.

The spelling of 2765287 in words is "two million, seven hundred sixty-five thousand, two hundred eighty-seven".