344398973 has 2 divisors, whose sum is σ = 344398974. Its totient is φ = 344398972.

The previous prime is 344398963. The next prime is 344398979. The reversal of 344398973 is 379893443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234610489 + 109788484 = 15317^2 + 10478^2 .

It is an emirp because it is prime and its reverse (379893443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344398973 is a prime.

It is a super-2 number, since 2×344398973² = 237221305206909458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344398979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172199486 + 172199487.

It is an arithmetic number, because the mean of its divisors is an integer number (172199487).

Almost surely, 2^344398973 is an apocalyptic number.

It is an amenable number.

344398973 is a deficient number, since it is larger than the sum of its proper divisors (1).

344398973 is an equidigital number, since it uses as much as digits as its factorization.

344398973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 50.

The square root of 344398973 is about 18557.9894654567. The cubic root of 344398973 is about 700.9503913807.

The spelling of 344398973 in words is "three hundred forty-four million, three hundred ninety-eight thousand, nine hundred seventy-three".