344796409 has 2 divisors, whose sum is σ = 344796410. Its totient is φ = 344796408.

The previous prime is 344796391. The next prime is 344796437. The reversal of 344796409 is 904697443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319515625 + 25280784 = 17875^2 + 5028^2 .

It is a cyclic number.

It is not a de Polignac number, because 344796409 - 2⁹ = 344795897 is a prime.

It is equal to p_18538984 and since 344796409 and 18538984 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (344796469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172398204 + 172398205.

It is an arithmetic number, because the mean of its divisors is an integer number (172398205).

Almost surely, 2^344796409 is an apocalyptic number.

It is an amenable number.

344796409 is a deficient number, since it is larger than the sum of its proper divisors (1).

344796409 is an equidigital number, since it uses as much as digits as its factorization.

344796409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 344796409 is about 18568.6943267425. The cubic root of 344796409 is about 701.2199196979.

It can be divided in two parts, 3447 and 96409, that added together give a square (99856 = 316²).

The spelling of 344796409 in words is "three hundred forty-four million, seven hundred ninety-six thousand, four hundred nine".