2765723 has 4 divisors (see below), whose sum is σ = 2774928. Its totient is φ = 2756520.

The previous prime is 2765689. The next prime is 2765731. The reversal of 2765723 is 3275672.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2765723 - 2¹⁴ = 2749339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2765723.

It is not an unprimeable number, because it can be changed into a prime (2765753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4136 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (693732).

2^2765723 is an apocalyptic number.

2765723 is a deficient number, since it is larger than the sum of its proper divisors (9205).

2765723 is an equidigital number, since it uses as much as digits as its factorization.

2765723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9204.

The product of its digits is 17640, while the sum is 32.

The square root of 2765723 is about 1663.0463012195. The cubic root of 2765723 is about 140.3684681477.

The spelling of 2765723 in words is "two million, seven hundred sixty-five thousand, seven hundred twenty-three".