344661953 has 2 divisors, whose sum is σ = 344661954. Its totient is φ = 344661952.

The previous prime is 344661913. The next prime is 344661971. The reversal of 344661953 is 359166443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328080769 + 16581184 = 18113^2 + 4072^2 .

It is a cyclic number.

It is not a de Polignac number, because 344661953 - 2¹⁰ = 344660929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 344661953.

It is not a weakly prime, because it can be changed into another prime (344661913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172330976 + 172330977.

It is an arithmetic number, because the mean of its divisors is an integer number (172330977).

Almost surely, 2^344661953 is an apocalyptic number.

It is an amenable number.

344661953 is a deficient number, since it is larger than the sum of its proper divisors (1).

344661953 is an equidigital number, since it uses as much as digits as its factorization.

344661953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 344661953 is about 18565.0734714409. The cubic root of 344661953 is about 701.1287591549.

The spelling of 344661953 in words is "three hundred forty-four million, six hundred sixty-one thousand, nine hundred fifty-three".