344638873 has 4 divisors (see below), whose sum is σ = 355756288. Its totient is φ = 333521460.

The previous prime is 344638867. The next prime is 344638897. The reversal of 344638873 is 378836443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344638873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344638373) 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, 5558661 + ... + 5558722.

It is an arithmetic number, because the mean of its divisors is an integer number (88939072).

Almost surely, 2^344638873 is an apocalyptic number.

It is an amenable number.

344638873 is a deficient number, since it is larger than the sum of its proper divisors (11117415).

344638873 is a wasteful number, since it uses less digits than its factorization.

344638873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117414.

The product of its digits is 1161216, while the sum is 46.

The square root of 344638873 is about 18564.4518637098. The cubic root of 344638873 is about 701.1131086382.

The spelling of 344638873 in words is "three hundred forty-four million, six hundred thirty-eight thousand, eight hundred seventy-three".