72683563 has 2 divisors, whose sum is σ = 72683564. Its totient is φ = 72683562.

The previous prime is 72683549. The next prime is 72683587. The reversal of 72683563 is 36538627.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72683563 is a prime.

It is not a weakly prime, because it can be changed into another prime (72683593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36341781 + 36341782.

It is an arithmetic number, because the mean of its divisors is an integer number (36341782).

Almost surely, 2^72683563 is an apocalyptic number.

72683563 is a deficient number, since it is larger than the sum of its proper divisors (1).

72683563 is an equidigital number, since it uses as much as digits as its factorization.

72683563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 72683563 is about 8525.4655591352. The cubic root of 72683563 is about 417.3291648104.

The spelling of 72683563 in words is "seventy-two million, six hundred eighty-three thousand, five hundred sixty-three".