72439233 has 8 divisors (see below), whose sum is σ = 97092096. Its totient is φ = 48039600.

The previous prime is 72439223. The next prime is 72439243. The reversal of 72439233 is 33293427.

It is an interprime number because it is at equal distance from previous prime (72439223) and next prime (72439243).

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

It is not a de Polignac number, because 72439233 - 2⁹ = 72438721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72439194 and 72439203.

It is not an unprimeable number, because it can be changed into a prime (72439223) 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 7 ways as a sum of consecutive naturals, for example, 62638 + ... + 63783.

It is an arithmetic number, because the mean of its divisors is an integer number (12136512).

Almost surely, 2^72439233 is an apocalyptic number.

It is an amenable number.

72439233 is a deficient number, since it is larger than the sum of its proper divisors (24652863).

72439233 is a wasteful number, since it uses less digits than its factorization.

72439233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126615.

The product of its digits is 27216, while the sum is 33.

The square root of 72439233 is about 8511.1240738224. The cubic root of 72439233 is about 416.8610144731.

The spelling of 72439233 in words is "seventy-two million, four hundred thirty-nine thousand, two hundred thirty-three".