72969617 has 8 divisors (see below), whose sum is σ = 83620416. Its totient is φ = 62375472.

The previous prime is 72969583. The next prime is 72969623. The reversal of 72969617 is 71696927.

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 72969617 - 2⁶ = 72969553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72999617) 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, 11363 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (10452552).

Almost surely, 2^72969617 is an apocalyptic number.

It is an amenable number.

72969617 is a deficient number, since it is larger than the sum of its proper divisors (10650799).

72969617 is a wasteful number, since it uses less digits than its factorization.

72969617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28327.

The product of its digits is 285768, while the sum is 47.

The square root of 72969617 is about 8542.2255296849. The cubic root of 72969617 is about 417.8759294630.

The spelling of 72969617 in words is "seventy-two million, nine hundred sixty-nine thousand, six hundred seventeen".