345065671 has 4 divisors (see below), whose sum is σ = 349792672. Its totient is φ = 340338672.

The previous prime is 345065647. The next prime is 345065683. The reversal of 345065671 is 176560543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176560543 = 53 ⋅3331331.

It is a cyclic number.

It is not a de Polignac number, because 345065671 - 2²¹ = 342968519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345065671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345060671) 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, 2363391 + ... + 2363536.

It is an arithmetic number, because the mean of its divisors is an integer number (87448168).

Almost surely, 2^345065671 is an apocalyptic number.

345065671 is a deficient number, since it is larger than the sum of its proper divisors (4727001).

345065671 is an equidigital number, since it uses as much as digits as its factorization.

345065671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727000.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 345065671 is about 18575.9433407835. The cubic root of 345065671 is about 701.4024068553.

The spelling of 345065671 in words is "three hundred forty-five million, sixty-five thousand, six hundred seventy-one".