344321623 has 4 divisors (see below), whose sum is σ = 345075520. Its totient is φ = 343567728.

The previous prime is 344321617. The next prime is 344321633. The reversal of 344321623 is 326123443.

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 344321623 - 2²¹ = 342224471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344321591 and 344321600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344321603) 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, 376263 + ... + 377176.

It is an arithmetic number, because the mean of its divisors is an integer number (86268880).

Almost surely, 2^344321623 is an apocalyptic number.

344321623 is a deficient number, since it is larger than the sum of its proper divisors (753897).

344321623 is an equidigital number, since it uses as much as digits as its factorization.

344321623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753896.

The product of its digits is 10368, while the sum is 28.

The square root of 344321623 is about 18555.9053403492. The cubic root of 344321623 is about 700.8979109955.

The spelling of 344321623 in words is "three hundred forty-four million, three hundred twenty-one thousand, six hundred twenty-three".