34218427 has 4 divisors (see below), whose sum is σ = 34428520. Its totient is φ = 34008336.

The previous prime is 34218421. The next prime is 34218461. The reversal of 34218427 is 72481243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34218427 - 2³ = 34218419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34218421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104802 + ... + 105127.

It is an arithmetic number, because the mean of its divisors is an integer number (8607130).

Almost surely, 2^34218427 is an apocalyptic number.

34218427 is a deficient number, since it is larger than the sum of its proper divisors (210093).

34218427 is a wasteful number, since it uses less digits than its factorization.

34218427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210092.

The product of its digits is 10752, while the sum is 31.

The square root of 34218427 is about 5849.6518699834. The cubic root of 34218427 is about 324.6534436065.

It can be divided in two parts, 342 and 18427, that added together give a square (18769 = 137²).

The spelling of 34218427 in words is "thirty-four million, two hundred eighteen thousand, four hundred twenty-seven".