34238639 has 4 divisors (see below), whose sum is σ = 34448856. Its totient is φ = 34028424.

The previous prime is 34238623. The next prime is 34238641. The reversal of 34238639 is 93683243.

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 34238639 - 2⁴ = 34238623 is a prime.

It is a super-3 number, since 3×34238639³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34238339) 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, 104864 + ... + 105189.

It is an arithmetic number, because the mean of its divisors is an integer number (8612214).

Almost surely, 2^34238639 is an apocalyptic number.

34238639 is a deficient number, since it is larger than the sum of its proper divisors (210217).

34238639 is a wasteful number, since it uses less digits than its factorization.

34238639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210216.

The product of its digits is 93312, while the sum is 38.

The square root of 34238639 is about 5851.3792391196. The cubic root of 34238639 is about 324.7173526795.

The spelling of 34238639 in words is "thirty-four million, two hundred thirty-eight thousand, six hundred thirty-nine".