72343717 has 8 divisors (see below), whose sum is σ = 75638016. Its totient is φ = 69061872.

The previous prime is 72343703. The next prime is 72343729. The reversal of 72343717 is 71734327.

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 72343717 - 2⁷ = 72343589 is a prime.

It is a super-2 number, since 2×72343717² = 10467226778752178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72343787) 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, 9988 + ... + 15634.

It is an arithmetic number, because the mean of its divisors is an integer number (9454752).

Almost surely, 2^72343717 is an apocalyptic number.

It is an amenable number.

72343717 is a deficient number, since it is larger than the sum of its proper divisors (3294299).

72343717 is a wasteful number, since it uses less digits than its factorization.

72343717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227.

The product of its digits is 24696, while the sum is 34.

The square root of 72343717 is about 8505.5109781835. The cubic root of 72343717 is about 416.6777141249.

The spelling of 72343717 in words is "seventy-two million, three hundred forty-three thousand, seven hundred seventeen".