345872327 has 4 divisors (see below), whose sum is σ = 366217776. Its totient is φ = 325526880.

The previous prime is 345872323. The next prime is 345872339. The reversal of 345872327 is 723278543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723278543 = 13 ⋅55636811.

It is not a de Polignac number, because 345872327 - 2² = 345872323 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345872323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10172699 + ... + 10172732.

It is an arithmetic number, because the mean of its divisors is an integer number (91554444).

Almost surely, 2^345872327 is an apocalyptic number.

345872327 is a deficient number, since it is larger than the sum of its proper divisors (20345449).

345872327 is a wasteful number, since it uses less digits than its factorization.

345872327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20345448.

The product of its digits is 282240, while the sum is 41.

The square root of 345872327 is about 18597.6430495910. The cubic root of 345872327 is about 701.9485349294.

The spelling of 345872327 in words is "three hundred forty-five million, eight hundred seventy-two thousand, three hundred twenty-seven".