72384049 has 2 divisors, whose sum is σ = 72384050. Its totient is φ = 72384048.

The previous prime is 72384047. The next prime is 72384077. The reversal of 72384049 is 94048327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72165025 + 219024 = 8495^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 72384049 - 2¹ = 72384047 is a prime.

Together with 72384047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 72383999 and 72384017.

It is not a weakly prime, because it can be changed into another prime (72384041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192024 + 36192025.

It is an arithmetic number, because the mean of its divisors is an integer number (36192025).

Almost surely, 2^72384049 is an apocalyptic number.

It is an amenable number.

72384049 is a deficient number, since it is larger than the sum of its proper divisors (1).

72384049 is an equidigital number, since it uses as much as digits as its factorization.

72384049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 72384049 is about 8507.8815812163. The cubic root of 72384049 is about 416.7551330733.

The spelling of 72384049 in words is "seventy-two million, three hundred eighty-four thousand, forty-nine".