72759571 has 4 divisors (see below), whose sum is σ = 73427200. Its totient is φ = 72091944.

The previous prime is 72759563. The next prime is 72759581. The reversal of 72759571 is 17595727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17595727 = 3793 ⋅4639.

It is a cyclic number.

It is not a de Polignac number, because 72759571 - 2³ = 72759563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72759581) 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, 333651 + ... + 333868.

It is an arithmetic number, because the mean of its divisors is an integer number (18356800).

Almost surely, 2^72759571 is an apocalyptic number.

72759571 is a deficient number, since it is larger than the sum of its proper divisors (667629).

72759571 is a wasteful number, since it uses less digits than its factorization.

72759571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667628.

The product of its digits is 154350, while the sum is 43.

The square root of 72759571 is about 8529.9220981202. The cubic root of 72759571 is about 417.4745865225.

The spelling of 72759571 in words is "seventy-two million, seven hundred fifty-nine thousand, five hundred seventy-one".