345281717 has 4 divisors (see below), whose sum is σ = 376670976. Its totient is φ = 313892460.

The previous prime is 345281711. The next prime is 345281719. The reversal of 345281717 is 717182543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345281717 - 2⁶ = 345281653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345281711) 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 in 3 ways as a sum of consecutive naturals, for example, 15694613 + ... + 15694634.

It is an arithmetic number, because the mean of its divisors is an integer number (94167744).

Almost surely, 2^345281717 is an apocalyptic number.

It is an amenable number.

345281717 is a deficient number, since it is larger than the sum of its proper divisors (31389259).

345281717 is a wasteful number, since it uses less digits than its factorization.

345281717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31389258.

The product of its digits is 47040, while the sum is 38.

The square root of 345281717 is about 18581.7576402234. The cubic root of 345281717 is about 701.5487592579.

The spelling of 345281717 in words is "three hundred forty-five million, two hundred eighty-one thousand, seven hundred seventeen".