72385441 has 2 divisors, whose sum is σ = 72385442. Its totient is φ = 72385440.

The previous prime is 72385433. The next prime is 72385447. The reversal of 72385441 is 14458327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 35224225 = 6096^2 + 5935^2 .

It is a cyclic number.

It is not a de Polignac number, because 72385441 - 2³ = 72385433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72385397 and 72385406.

It is not a weakly prime, because it can be changed into another prime (72385447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192720 + 36192721.

It is an arithmetic number, because the mean of its divisors is an integer number (36192721).

Almost surely, 2^72385441 is an apocalyptic number.

It is an amenable number.

72385441 is a deficient number, since it is larger than the sum of its proper divisors (1).

72385441 is an equidigital number, since it uses as much as digits as its factorization.

72385441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 72385441 is about 8507.9633873213. The cubic root of 72385441 is about 416.7578045616.

The spelling of 72385441 in words is "seventy-two million, three hundred eighty-five thousand, four hundred forty-one".