72716237 has 8 divisors (see below), whose sum is σ = 80069472. Its totient is φ = 65486800.

The previous prime is 72716233. The next prime is 72716257. The reversal of 72716237 is 73261727.

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 72716237 - 2² = 72716233 is a prime.

It is a super-2 number, since 2×72716237² = 10575302246880338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72716197 and 72716206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72716233) 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, 29714 + ... + 32067.

It is an arithmetic number, because the mean of its divisors is an integer number (10008684).

Almost surely, 2^72716237 is an apocalyptic number.

It is an amenable number.

72716237 is a deficient number, since it is larger than the sum of its proper divisors (7353235).

72716237 is a wasteful number, since it uses less digits than its factorization.

72716237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61899.

The product of its digits is 24696, while the sum is 35.

The square root of 72716237 is about 8527.3816028134. The cubic root of 72716237 is about 417.3916905031.

Subtracting 72716237 from its reverse (73261727), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 72716237 in words is "seventy-two million, seven hundred sixteen thousand, two hundred thirty-seven".