344554649 has 2 divisors, whose sum is σ = 344554650. Its totient is φ = 344554648.

The previous prime is 344554621. The next prime is 344554667. The reversal of 344554649 is 946455443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199713424 + 144841225 = 14132^2 + 12035^2 .

It is a cyclic number.

It is not a de Polignac number, because 344554649 - 2⁸ = 344554393 is a prime.

It is a super-2 number, since 2×344554649² = 237435812295026402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (344554699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172277324 + 172277325.

It is an arithmetic number, because the mean of its divisors is an integer number (172277325).

Almost surely, 2^344554649 is an apocalyptic number.

It is an amenable number.

344554649 is a deficient number, since it is larger than the sum of its proper divisors (1).

344554649 is an equidigital number, since it uses as much as digits as its factorization.

344554649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 44.

The square root of 344554649 is about 18562.1833036957. The cubic root of 344554649 is about 701.0559905298.

The spelling of 344554649 in words is "three hundred forty-four million, five hundred fifty-four thousand, six hundred forty-nine".