72986523 has 8 divisors (see below), whose sum is σ = 99578688. Its totient is φ = 47526024.

The previous prime is 72986503. The next prime is 72986527. The reversal of 72986523 is 32568927.

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

It is not a de Polignac number, because 72986523 - 2⁸ = 72986267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72986527) 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, 282765 + ... + 283022.

It is an arithmetic number, because the mean of its divisors is an integer number (12447336).

Almost surely, 2^72986523 is an apocalyptic number.

72986523 is a deficient number, since it is larger than the sum of its proper divisors (26592165).

72986523 is a wasteful number, since it uses less digits than its factorization.

72986523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565833.

The product of its digits is 181440, while the sum is 42.

The square root of 72986523 is about 8543.2150271429. The cubic root of 72986523 is about 417.9081988980.

The spelling of 72986523 in words is "seventy-two million, nine hundred eighty-six thousand, five hundred twenty-three".