72300049 has 2 divisors, whose sum is σ = 72300050. Its totient is φ = 72300048.

The previous prime is 72300037. The next prime is 72300077. The reversal of 72300049 is 94000327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 3940225 = 8268^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 72300049 - 2¹¹ = 72298001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72299996 and 72300032.

It is not a weakly prime, because it can be changed into another prime (72307049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36150024 + 36150025.

It is an arithmetic number, because the mean of its divisors is an integer number (36150025).

Almost surely, 2^72300049 is an apocalyptic number.

It is an amenable number.

72300049 is a deficient number, since it is larger than the sum of its proper divisors (1).

72300049 is an equidigital number, since it uses as much as digits as its factorization.

72300049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 72300049 is about 8502.9435491481. The cubic root of 72300049 is about 416.5938591363.

The spelling of 72300049 in words is "seventy-two million, three hundred thousand, forty-nine".