345768689 has 4 divisors (see below), whose sum is σ = 395164224. Its totient is φ = 296373156.

The previous prime is 345768673. The next prime is 345768691. The reversal of 345768689 is 986867543.

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 345768689 - 2⁴ = 345768673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345768659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24697757 + ... + 24697770.

It is an arithmetic number, because the mean of its divisors is an integer number (98791056).

Almost surely, 2^345768689 is an apocalyptic number.

It is an amenable number.

345768689 is a deficient number, since it is larger than the sum of its proper divisors (49395535).

345768689 is an equidigital number, since it uses as much as digits as its factorization.

345768689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49395534.

The product of its digits is 8709120, while the sum is 56.

The square root of 345768689 is about 18594.8565200165. The cubic root of 345768689 is about 701.8784167538.

The spelling of 345768689 in words is "three hundred forty-five million, seven hundred sixty-eight thousand, six hundred eighty-nine".