345384499 has 2 divisors, whose sum is σ = 345384500. Its totient is φ = 345384498.

The previous prime is 345384439. The next prime is 345384509. The reversal of 345384499 is 994483543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345384499 - 2⁷ = 345384371 is a prime.

It is not a weakly prime, because it can be changed into another prime (345384409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172692249 + 172692250.

It is an arithmetic number, because the mean of its divisors is an integer number (172692250).

Almost surely, 2^345384499 is an apocalyptic number.

345384499 is a deficient number, since it is larger than the sum of its proper divisors (1).

345384499 is an equidigital number, since it uses as much as digits as its factorization.

345384499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 49.

The square root of 345384499 is about 18584.5231039163. The cubic root of 345384499 is about 701.6183637068.

The spelling of 345384499 in words is "three hundred forty-five million, three hundred eighty-four thousand, four hundred ninety-nine".