349723567 has 2 divisors, whose sum is σ = 349723568. Its totient is φ = 349723566.

The previous prime is 349723531. The next prime is 349723573. The reversal of 349723567 is 765327943.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349723567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349723597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174861783 + 174861784.

It is an arithmetic number, because the mean of its divisors is an integer number (174861784).

Almost surely, 2^349723567 is an apocalyptic number.

349723567 is a deficient number, since it is larger than the sum of its proper divisors (1).

349723567 is an equidigital number, since it uses as much as digits as its factorization.

349723567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 46.

The square root of 349723567 is about 18700.8974918318. The cubic root of 349723567 is about 704.5442904415.

The spelling of 349723567 in words is "three hundred forty-nine million, seven hundred twenty-three thousand, five hundred sixty-seven".