72380523 has 8 divisors (see below), whose sum is σ = 96795088. Its totient is φ = 48109824.

The previous prime is 72380507. The next prime is 72380533. The reversal of 72380523 is 32508327.

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

It is not a de Polignac number, because 72380523 - 2⁴ = 72380507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72380533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34786 + ... + 36807.

It is an arithmetic number, because the mean of its divisors is an integer number (12099386).

Almost surely, 2^72380523 is an apocalyptic number.

72380523 is a deficient number, since it is larger than the sum of its proper divisors (24414565).

72380523 is a wasteful number, since it uses less digits than its factorization.

72380523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71933.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 72380523 is about 8507.6743590713. The cubic root of 72380523 is about 416.7483659173.

The spelling of 72380523 in words is "seventy-two million, three hundred eighty thousand, five hundred twenty-three".