72680385 has 8 divisors (see below), whose sum is σ = 116288640. Its totient is φ = 38762864.

The previous prime is 72680353. The next prime is 72680407. The reversal of 72680385 is 58308627.

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 72680385 - 2⁵ = 72680353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2422665 + ... + 2422694.

It is an arithmetic number, because the mean of its divisors is an integer number (14536080).

Almost surely, 2^72680385 is an apocalyptic number.

It is an amenable number.

72680385 is a deficient number, since it is larger than the sum of its proper divisors (43608255).

72680385 is a wasteful number, since it uses less digits than its factorization.

72680385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845367.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 72680385 is about 8525.2791743145. The cubic root of 72680385 is about 417.3230823191.

The spelling of 72680385 in words is "seventy-two million, six hundred eighty thousand, three hundred eighty-five".