72663422 has 8 divisors (see below), whose sum is σ = 117379416. Its totient is φ = 33536952.

The previous prime is 72663401. The next prime is 72663499. The reversal of 72663422 is 22436627.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397348 + ... + 1397399.

It is an arithmetic number, because the mean of its divisors is an integer number (14672427).

Almost surely, 2^72663422 is an apocalyptic number.

72663422 is a deficient number, since it is larger than the sum of its proper divisors (44715994).

72663422 is a wasteful number, since it uses less digits than its factorization.

72663422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794762.

The product of its digits is 24192, while the sum is 32.

The square root of 72663422 is about 8524.2842514782. The cubic root of 72663422 is about 417.2906132091.

The spelling of 72663422 in words is "seventy-two million, six hundred sixty-three thousand, four hundred twenty-two".