342879289 has 3 divisors (see below), whose sum is σ = 342897807. Its totient is φ = 342860772.

The previous prime is 342879283. The next prime is 342879347. The reversal of 342879289 is 982978243.

The square root of 342879289 is 18517.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 96138025 + 246741264 = 9805^2 + 15708^2 .

It is not a de Polignac number, because 342879289 - 2³ = 342879281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342879281) 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 2 ways as a sum of consecutive naturals, for example, 9259 + ... + 27775.

It is an arithmetic number, because the mean of its divisors is an integer number (114299269).

Almost surely, 2^342879289 is an apocalyptic number.

342879289 is the 18517-th square number.

342879289 is the 9259-th centered octagonal number.

It is an amenable number.

342879289 is a deficient number, since it is larger than the sum of its proper divisors (18518).

342879289 is an frugal number, since it uses more digits than its factorization.

342879289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37034 (or 18517 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The cubic root of 342879289 is about 699.9178740386.

The spelling of 342879289 in words is "three hundred forty-two million, eight hundred seventy-nine thousand, two hundred eighty-nine".