72932439 has 8 divisors (see below), whose sum is σ = 99871600. Its totient is φ = 47307456.

The previous prime is 72932423. The next prime is 72932441. The reversal of 72932439 is 93423927.

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

It is not a de Polignac number, because 72932439 - 2⁴ = 72932423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72932397 and 72932406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72932449) 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, 328414 + ... + 328635.

It is an arithmetic number, because the mean of its divisors is an integer number (12483950).

Almost surely, 2^72932439 is an apocalyptic number.

72932439 is a deficient number, since it is larger than the sum of its proper divisors (26939161).

72932439 is a wasteful number, since it uses less digits than its factorization.

72932439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657089.

The product of its digits is 81648, while the sum is 39.

The square root of 72932439 is about 8540.0491216386. The cubic root of 72932439 is about 417.8049481825.

The spelling of 72932439 in words is "seventy-two million, nine hundred thirty-two thousand, four hundred thirty-nine".