34144639 has 4 divisors (see below), whose sum is σ = 34286560. Its totient is φ = 34002720.

The previous prime is 34144633. The next prime is 34144651. The reversal of 34144639 is 93644143.

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 34144639 - 2¹³ = 34136447 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 (34144633) 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, 70599 + ... + 71080.

It is an arithmetic number, because the mean of its divisors is an integer number (8571640).

Almost surely, 2^34144639 is an apocalyptic number.

34144639 is a deficient number, since it is larger than the sum of its proper divisors (141921).

34144639 is a wasteful number, since it uses less digits than its factorization.

34144639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141920.

The product of its digits is 31104, while the sum is 34.

The square root of 34144639 is about 5843.3414242195. The cubic root of 34144639 is about 324.4199167211.

The spelling of 34144639 in words is "thirty-four million, one hundred forty-four thousand, six hundred thirty-nine".