72280859 has 8 divisors (see below), whose sum is σ = 82787328. Its totient is φ = 61819560.

The previous prime is 72280837. The next prime is 72280867. The reversal of 72280859 is 95808227.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72280859 - 2⁸ = 72280603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72280829) 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, 7787 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (10348416).

Almost surely, 2^72280859 is an apocalyptic number.

72280859 is a deficient number, since it is larger than the sum of its proper divisors (10506469).

72280859 is a wasteful number, since it uses less digits than its factorization.

72280859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 72280859 is about 8501.8150415073. The cubic root of 72280859 is about 416.5569981951.

The spelling of 72280859 in words is "seventy-two million, two hundred eighty thousand, eight hundred fifty-nine".