72603941 has 2 divisors, whose sum is σ = 72603942. Its totient is φ = 72603940.

The previous prime is 72603911. The next prime is 72603983. The reversal of 72603941 is 14930627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71740900 + 863041 = 8470^2 + 929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72603941 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72603898 and 72603907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72603911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36301970 + 36301971.

It is an arithmetic number, because the mean of its divisors is an integer number (36301971).

Almost surely, 2^72603941 is an apocalyptic number.

It is an amenable number.

72603941 is a deficient number, since it is larger than the sum of its proper divisors (1).

72603941 is an equidigital number, since it uses as much as digits as its factorization.

72603941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 72603941 is about 8520.7946225690. The cubic root of 72603941 is about 417.1767198728.

The spelling of 72603941 in words is "seventy-two million, six hundred three thousand, nine hundred forty-one".