344774389 has 2 divisors, whose sum is σ = 344774390. Its totient is φ = 344774388.

The previous prime is 344774383. The next prime is 344774449. The reversal of 344774389 is 983477443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324900625 + 19873764 = 18025^2 + 4458^2 .

It is a cyclic number.

It is not a de Polignac number, because 344774389 - 2¹⁷ = 344643317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344774383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172387194 + 172387195.

It is an arithmetic number, because the mean of its divisors is an integer number (172387195).

Almost surely, 2^344774389 is an apocalyptic number.

It is an amenable number.

344774389 is a deficient number, since it is larger than the sum of its proper divisors (1).

344774389 is an equidigital number, since it uses as much as digits as its factorization.

344774389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 49.

The square root of 344774389 is about 18568.1013838249. The cubic root of 344774389 is about 701.2049918633.

The spelling of 344774389 in words is "three hundred forty-four million, seven hundred seventy-four thousand, three hundred eighty-nine".