72069239 has 8 divisors (see below), whose sum is σ = 83245968. Its totient is φ = 61663360.

The previous prime is 72069233. The next prime is 72069259. The reversal of 72069239 is 93296027.

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

It is not a de Polignac number, because 72069239 - 2¹⁶ = 72003703 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 (72069233) 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, 192512 + ... + 192885.

It is an arithmetic number, because the mean of its divisors is an integer number (10405746).

Almost surely, 2^72069239 is an apocalyptic number.

72069239 is a deficient number, since it is larger than the sum of its proper divisors (11176729).

72069239 is a wasteful number, since it uses less digits than its factorization.

72069239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385425.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 72069239 is about 8489.3603410387. The cubic root of 72069239 is about 416.1500764454.

The spelling of 72069239 in words is "seventy-two million, sixty-nine thousand, two hundred thirty-nine".