72599543 has 2 divisors, whose sum is σ = 72599544. Its totient is φ = 72599542.

The previous prime is 72599539. The next prime is 72599567. The reversal of 72599543 is 34599527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72599543 - 2² = 72599539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72599494 and 72599503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72599533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36299771 + 36299772.

It is an arithmetic number, because the mean of its divisors is an integer number (36299772).

Almost surely, 2^72599543 is an apocalyptic number.

72599543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72599543 is an equidigital number, since it uses as much as digits as its factorization.

72599543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 44.

The square root of 72599543 is about 8520.5365441385. The cubic root of 72599543 is about 417.1682961782.

The spelling of 72599543 in words is "seventy-two million, five hundred ninety-nine thousand, five hundred forty-three".