72719585 has 4 divisors (see below), whose sum is σ = 87263508. Its totient is φ = 58175664.

The previous prime is 72719567. The next prime is 72719611. The reversal of 72719585 is 58591727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58591727 = 5527 ⋅10601.

It can be written as a sum of positive squares in 2 ways, for example, as 28217344 + 44502241 = 5312^2 + 6671^2 .

It is a cyclic number.

It is not a de Polignac number, because 72719585 - 2¹⁰ = 72718561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7271954 + ... + 7271963.

It is an arithmetic number, because the mean of its divisors is an integer number (21815877).

Almost surely, 2^72719585 is an apocalyptic number.

It is an amenable number.

72719585 is a deficient number, since it is larger than the sum of its proper divisors (14543923).

72719585 is a wasteful number, since it uses less digits than its factorization.

72719585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14543922.

The product of its digits is 176400, while the sum is 44.

The square root of 72719585 is about 8527.5779093480. The cubic root of 72719585 is about 417.3980962523.

The spelling of 72719585 in words is "seventy-two million, seven hundred nineteen thousand, five hundred eighty-five".