72579871 has 8 divisors (see below), whose sum is σ = 89329184. Its totient is φ = 57425760.

The previous prime is 72579869. The next prime is 72579883. The reversal of 72579871 is 17897527.

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

It is not a de Polignac number, because 72579871 - 2¹ = 72579869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72579841) 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, 398700 + ... + 398881.

It is an arithmetic number, because the mean of its divisors is an integer number (11166148).

Almost surely, 2^72579871 is an apocalyptic number.

72579871 is a deficient number, since it is larger than the sum of its proper divisors (16749313).

72579871 is a wasteful number, since it uses less digits than its factorization.

72579871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797601.

The product of its digits is 246960, while the sum is 46.

The square root of 72579871 is about 8519.3820785313. The cubic root of 72579871 is about 417.1306133145.

The spelling of 72579871 in words is "seventy-two million, five hundred seventy-nine thousand, eight hundred seventy-one".