72830387 has 8 divisors (see below), whose sum is σ = 83287296. Its totient is φ = 62386632.

The previous prime is 72830383. The next prime is 72830389. The reversal of 72830387 is 78303827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72830387 - 2² = 72830383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72830387.

It is not an unprimeable number, because it can be changed into a prime (72830383) 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, 16688 + ... + 20594.

It is an arithmetic number, because the mean of its divisors is an integer number (10410912).

Almost surely, 2^72830387 is an apocalyptic number.

72830387 is a deficient number, since it is larger than the sum of its proper divisors (10456909).

72830387 is a wasteful number, since it uses less digits than its factorization.

72830387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 72830387 is about 8534.0721229669. The cubic root of 72830387 is about 417.6099835738.

The spelling of 72830387 in words is "seventy-two million, eight hundred thirty thousand, three hundred eighty-seven".