345271727 has 4 divisors (see below), whose sum is σ = 346315176. Its totient is φ = 344228280.

The previous prime is 345271711. The next prime is 345271739. The reversal of 345271727 is 727172543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727172543 = 2447 ⋅297169.

It is a cyclic number.

It is not a de Polignac number, because 345271727 - 2⁴ = 345271711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345271747) 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, 521228 + ... + 521889.

It is an arithmetic number, because the mean of its divisors is an integer number (86578794).

Almost surely, 2^345271727 is an apocalyptic number.

345271727 is a deficient number, since it is larger than the sum of its proper divisors (1043449).

345271727 is a wasteful number, since it uses less digits than its factorization.

345271727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043448.

The product of its digits is 82320, while the sum is 38.

The square root of 345271727 is about 18581.4888262486. The cubic root of 345271727 is about 701.5419932469.

The spelling of 345271727 in words is "three hundred forty-five million, two hundred seventy-one thousand, seven hundred twenty-seven".