72271589 has 8 divisors (see below), whose sum is σ = 81215232. Its totient is φ = 63811440.

The previous prime is 72271559. The next prime is 72271613. The reversal of 72271589 is 98517227.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72271589 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 (72271559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120557 + ... + 121154.

It is an arithmetic number, because the mean of its divisors is an integer number (10151904).

Almost surely, 2^72271589 is an apocalyptic number.

It is an amenable number.

72271589 is a deficient number, since it is larger than the sum of its proper divisors (8943643).

72271589 is a wasteful number, since it uses less digits than its factorization.

72271589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241747.

The product of its digits is 70560, while the sum is 41.

The square root of 72271589 is about 8501.2698463230. The cubic root of 72271589 is about 416.5391896608.

The spelling of 72271589 in words is "seventy-two million, two hundred seventy-one thousand, five hundred eighty-nine".