2623345 has 4 divisors (see below), whose sum is σ = 3148020. Its totient is φ = 2098672.

The previous prime is 2623343. The next prime is 2623351. The reversal of 2623345 is 5433262.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 2274064 = 591^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 2623345 - 2¹ = 2623343 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 2¹⁷ + 3⁷ + 3¹² + 4⁶ + 5⁹ .

2623345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2623343) 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, 262330 + ... + 262339.

It is an arithmetic number, because the mean of its divisors is an integer number (787005).

2^2623345 is an apocalyptic number.

It is an amenable number.

2623345 is a deficient number, since it is larger than the sum of its proper divisors (524675).

2623345 is an equidigital number, since it uses as much as digits as its factorization.

2623345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524674.

The product of its digits is 4320, while the sum is 25.

The square root of 2623345 is about 1619.6743499852. The cubic root of 2623345 is about 137.9172121242.

The spelling of 2623345 in words is "two million, six hundred twenty-three thousand, three hundred forty-five".