344861873 has 4 divisors (see below), whose sum is σ = 345885540. Its totient is φ = 343838208.

The previous prime is 344861851. The next prime is 344861893. The reversal of 344861873 is 378168443.

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 108409744 + 236452129 = 10412^2 + 15377^2 .

It is a cyclic number.

It is not a de Polignac number, because 344861873 - 2⁸ = 344861617 is a prime.

It is a super-2 number, since 2×344861873² = 237859422898136258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344861893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511328 + ... + 512001.

It is an arithmetic number, because the mean of its divisors is an integer number (86471385).

Almost surely, 2^344861873 is an apocalyptic number.

It is an amenable number.

344861873 is a deficient number, since it is larger than the sum of its proper divisors (1023667).

344861873 is a wasteful number, since it uses less digits than its factorization.

344861873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023666.

The product of its digits is 387072, while the sum is 44.

The square root of 344861873 is about 18570.4569949153. The cubic root of 344861873 is about 701.2642954075.

The spelling of 344861873 in words is "three hundred forty-four million, eight hundred sixty-one thousand, eight hundred seventy-three".