72339 has 4 divisors (see below), whose sum is σ = 96456. Its totient is φ = 48224.

The previous prime is 72337. The next prime is 72341. The reversal of 72339 is 93327.

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

It is an interprime number because it is at equal distance from previous prime (72337) and next prime (72341).

It is a cyclic number.

It is not a de Polignac number, because 72339 - 2¹ = 72337 is a prime.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (72337) 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, 12054 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (24114).

2⁷²³³⁹ is an apocalyptic number.

72339 is a deficient number, since it is larger than the sum of its proper divisors (24117).

72339 is a wasteful number, since it uses less digits than its factorization.

72339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24116.

The product of its digits is 1134, while the sum is 24.

The square root of 72339 is about 268.9591046981. The cubic root of 72339 is about 41.6668657768. Note that the first 3 decimals are identical.

It can be divided in two parts, 7 and 2339, that added together give a triangular number (2346 = T₆₈).

The spelling of 72339 in words is "seventy-two thousand, three hundred thirty-nine".