345026817 has 8 divisors (see below), whose sum is σ = 511150880. Its totient is φ = 230017860.

The previous prime is 345026791. The next prime is 345026831. The reversal of 345026817 is 718620543.

It is not a de Polignac number, because 345026817 - 2⁶ = 345026753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345026837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6389359 + ... + 6389412.

It is an arithmetic number, because the mean of its divisors is an integer number (63893860).

Almost surely, 2^345026817 is an apocalyptic number.

It is an amenable number.

345026817 is a deficient number, since it is larger than the sum of its proper divisors (166124063).

345026817 is a wasteful number, since it uses less digits than its factorization.

345026817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778780 (or 12778774 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 345026817 is about 18574.8974963524. The cubic root of 345026817 is about 701.3760801642.

The spelling of 345026817 in words is "three hundred forty-five million, twenty-six thousand, eight hundred seventeen".