72580863 has 8 divisors (see below), whose sum is σ = 97198000. Its totient is φ = 48175488.

The previous prime is 72580853. The next prime is 72580867. The reversal of 72580863 is 36808527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72580863 - 2⁶ = 72580799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72580867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52138 + ... + 53511.

It is an arithmetic number, because the mean of its divisors is an integer number (12149750).

Almost surely, 2^72580863 is an apocalyptic number.

72580863 is a deficient number, since it is larger than the sum of its proper divisors (24617137).

72580863 is a wasteful number, since it uses less digits than its factorization.

72580863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105881.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 72580863 is about 8519.4402985173. The cubic root of 72580863 is about 417.1325137113.

The spelling of 72580863 in words is "seventy-two million, five hundred eighty thousand, eight hundred sixty-three".