72930039 has 16 divisors (see below), whose sum is σ = 119680512. Its totient is φ = 38468448.

The previous prime is 72930019. The next prime is 72930083. The reversal of 72930039 is 93003927.

It is not a de Polignac number, because 72930039 - 2⁵ = 72930007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72929991 and 72930009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72930019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133299 + ... + 133844.

It is an arithmetic number, because the mean of its divisors is an integer number (7480032).

Almost surely, 2^72930039 is an apocalyptic number.

72930039 is a deficient number, since it is larger than the sum of its proper divisors (46750473).

72930039 is a wasteful number, since it uses less digits than its factorization.

72930039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267166.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 72930039 is about 8539.9086060683. The cubic root of 72930039 is about 417.8003652064.

The spelling of 72930039 in words is "seventy-two million, nine hundred thirty thousand, thirty-nine".