72060817 has 8 divisors (see below), whose sum is σ = 75407616. Its totient is φ = 68731872.

The previous prime is 72060809. The next prime is 72060847. The reversal of 72060817 is 71806027.

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 72060817 - 2³ = 72060809 is a prime.

It is a super-2 number, since 2×72060817² = 10385522693414978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72060847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4173 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (9425952).

Almost surely, 2^72060817 is an apocalyptic number.

It is an amenable number.

72060817 is a deficient number, since it is larger than the sum of its proper divisors (3346799).

72060817 is a wasteful number, since it uses less digits than its factorization.

72060817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8927.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 72060817 is about 8488.8642938853. The cubic root of 72060817 is about 416.1338654029.

The spelling of 72060817 in words is "seventy-two million, sixty thousand, eight hundred seventeen".