2765231 has 8 divisors (see below), whose sum is σ = 3262464. Its totient is φ = 2293560.

The previous prime is 2765227. The next prime is 2765233. The reversal of 2765231 is 1325672.

2765231 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2765231 - 2² = 2765227 is a prime.

It is a super-2 number, since 2×2765231² = 15293004966722, which contains 22 as substring.

It is a Duffinian number.

2765231 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2765231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765233) 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, 6155 + ... + 6588.

It is an arithmetic number, because the mean of its divisors is an integer number (407808).

2^2765231 is an apocalyptic number.

2765231 is a deficient number, since it is larger than the sum of its proper divisors (497233).

2765231 is a wasteful number, since it uses less digits than its factorization.

2765231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781.

The product of its digits is 2520, while the sum is 26.

The square root of 2765231 is about 1662.8983733229. The cubic root of 2765231 is about 140.3601441782.

The spelling of 2765231 in words is "two million, seven hundred sixty-five thousand, two hundred thirty-one".