72368563 has 4 divisors (see below), whose sum is σ = 72747648. Its totient is φ = 71989480.

The previous prime is 72368561. The next prime is 72368581. The reversal of 72368563 is 36586327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72368563 - 2¹ = 72368561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72368561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189256 + ... + 189637.

It is an arithmetic number, because the mean of its divisors is an integer number (18186912).

Almost surely, 2^72368563 is an apocalyptic number.

72368563 is a deficient number, since it is larger than the sum of its proper divisors (379085).

72368563 is a wasteful number, since it uses less digits than its factorization.

72368563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379084.

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

The square root of 72368563 is about 8506.9714352406. The cubic root of 72368563 is about 416.7254104554.

The spelling of 72368563 in words is "seventy-two million, three hundred sixty-eight thousand, five hundred sixty-three".