72930043 has 4 divisors (see below), whose sum is σ = 72947128. Its totient is φ = 72912960.

The previous prime is 72930019. The next prime is 72930083. The reversal of 72930043 is 34003927.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72930043 - 2⁹ = 72929531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72929993 and 72930020.

It is not an unprimeable number, because it can be changed into a prime (72930083) 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, 3988 + ... + 12718.

It is an arithmetic number, because the mean of its divisors is an integer number (18236782).

Almost surely, 2^72930043 is an apocalyptic number.

72930043 is a deficient number, since it is larger than the sum of its proper divisors (17085).

72930043 is an equidigital number, since it uses as much as digits as its factorization.

72930043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 72930043 is about 8539.9088402629. The cubic root of 72930043 is about 417.8003728448.

The spelling of 72930043 in words is "seventy-two million, nine hundred thirty thousand, forty-three".