73736563 has 2 divisors, whose sum is σ = 73736564. Its totient is φ = 73736562.

The previous prime is 73736557. The next prime is 73736591. The reversal of 73736563 is 36563737.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73736563 is a prime.

It is not a weakly prime, because it can be changed into another prime (73736503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36868281 + 36868282.

It is an arithmetic number, because the mean of its divisors is an integer number (36868282).

Almost surely, 2^73736563 is an apocalyptic number.

73736563 is a deficient number, since it is larger than the sum of its proper divisors (1).

73736563 is an equidigital number, since it uses as much as digits as its factorization.

73736563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 40.

The square root of 73736563 is about 8586.9996506347. Note that the first 3 decimals coincide. The cubic root of 73736563 is about 419.3348561028.

The spelling of 73736563 in words is "seventy-three million, seven hundred thirty-six thousand, five hundred sixty-three".