2730023 has 4 divisors (see below), whose sum is σ = 2745288. Its totient is φ = 2714760.

The previous prime is 2730017. The next prime is 2730041. The reversal of 2730023 is 3200372.

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 2730023 - 2⁶ = 2729959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2729983 and 2730010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730823) 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, 7361 + ... + 7722.

It is an arithmetic number, because the mean of its divisors is an integer number (686322).

2^2730023 is an apocalyptic number.

2730023 is a deficient number, since it is larger than the sum of its proper divisors (15265).

2730023 is a wasteful number, since it uses less digits than its factorization.

2730023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15264.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 2730023 is about 1652.2781242878. The cubic root of 2730023 is about 139.7618911779.

Adding to 2730023 its reverse (3200372), we get a palindrome (5930395).

The spelling of 2730023 in words is "two million, seven hundred thirty thousand, twenty-three".