72005239 has 8 divisors (see below), whose sum is σ = 73290672. Its totient is φ = 70729920.

The previous prime is 72005237. The next prime is 72005279. The reversal of 72005239 is 93250027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72005239 - 2¹ = 72005237 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 (72005233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12627 + ... + 17419.

It is an arithmetic number, because the mean of its divisors is an integer number (9161334).

Almost surely, 2^72005239 is an apocalyptic number.

72005239 is a deficient number, since it is larger than the sum of its proper divisors (1285433).

72005239 is a wasteful number, since it uses less digits than its factorization.

72005239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 72005239 is about 8485.5900796586. The cubic root of 72005239 is about 416.0268546982.

The spelling of 72005239 in words is "seventy-two million, five thousand, two hundred thirty-nine".