345712673 has 2 divisors, whose sum is σ = 345712674. Its totient is φ = 345712672.

The previous prime is 345712649. The next prime is 345712687. The reversal of 345712673 is 376217543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213393664 + 132319009 = 14608^2 + 11503^2 .

It is a cyclic number.

It is not a de Polignac number, because 345712673 - 2⁸ = 345712417 is a prime.

It is not a weakly prime, because it can be changed into another prime (345712603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172856336 + 172856337.

It is an arithmetic number, because the mean of its divisors is an integer number (172856337).

Almost surely, 2^345712673 is an apocalyptic number.

It is an amenable number.

345712673 is a deficient number, since it is larger than the sum of its proper divisors (1).

345712673 is an equidigital number, since it uses as much as digits as its factorization.

345712673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 345712673 is about 18593.3502360387. The cubic root of 345712673 is about 701.8405122761.

The spelling of 345712673 in words is "three hundred forty-five million, seven hundred twelve thousand, six hundred seventy-three".